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mnf2023_dicussion_classes

Course: MNF2023 2023, Spring 2011
School: University of South Africa
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DISCUSSION MNF2023 CLASS MNF2023 DISCUSSION CLASS September 2010 Ensure that your calculator is cleared before any new calculation (shift or 2nd Function, clear all/CA. When you clear the HP10bII it should show a quick message (1- P-yr). If it does not, press; 1 Shift PMT and clear again until it indicates (1-P-yr) If you calculate an annuity due, remember to convert the calculator to begin mode and always...

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DISCUSSION MNF2023 CLASS MNF2023 DISCUSSION CLASS September 2010 Ensure that your calculator is cleared before any new calculation (shift or 2nd Function, clear all/CA. When you clear the HP10bII it should show a quick message (1- P-yr). If it does not, press; 1 Shift PMT and clear again until it indicates (1-P-yr) If you calculate an annuity due, remember to convert the calculator to begin mode and always change back to normal mode after you complete this kind of calculation In time value for money, interest is always quoted per annum e.g. 12% pa. Therefore when it is compounded more than once a year, remember to determine the interest per period and to increase the periods N (see study unit 5 study guide) You should ignore the input (CPT) key when using the HP10bII and just press for the required variable IMPORTANT INFORMATION (Calculators) I have provided you the suggested solutions (Memo) for the May/June 09 exams posted under additional resources on myUNISA. Please work through the questions and check with the answers. But please, do not concentrate on this paper alone as the upcoming exam questions may differ. I have also provided you with the questions and answers from last semester(Semester 1),2010 for both assignments 1 & 2. Although some of the questions are similar to your tutorial, I advise you to attempt them and compare with the answers I have provided at the end of these slides. You have enough questions and pointers for this exam, in this presentation, your tutorial letters, the May/June, /Oct/Nov 09 exam, the study guide and textbook. So, just practice....practice...practice! IMPORTANT INFORMATION The examination will consist of section A & B. Section A is 50 multiples choice questions accounting for 1 mark each, (totalling 50 marks) Section B will comprise 2 short answer questions (from chapters 14 &/or 15) totalling 20 marks (show all your working for this section). The whole paper will be marked out of 70 marks which will be adjusted to 90% to account for the exam mark. The exam duration is 2hours so budget your time sparingly so that you complete the exam on time. We recommend at most, 1 and a half hours to section A and 30 minutes to section B but you are welcome to follow a pattern which suits you. Both your assignments 01 and 02 contribute to the year mark of 10%. Each assignment accounts for 5% of the year mark so you are encouraged to submit both assignments. EXAMINATION FORMAT CHAPTER 2 FINANCIAL STATEMENTS FINANCIAL STATEMENT ANALYSIS You will need to be familiar with income and balance sheet will need to be familiar with income and balance sheet statements since some questions will test your knowledge in this regard. Questions 1-4 in your assignment 01 tested your knowledge on the income statement. Please work through the solutions in your tutorial and the statements above to become familiar with your tutorial and the statements above to become familiar with these calculations You need to know how to calculate Earnings per share (EPS), net profit after taxes, Dividends per share given the divided payout, ROE, etc You should expect both theory and calculations from this should expect both theory and calculations from this section. Below is some illustration of typical questions that could come from this section. Please work through them and compare with the provided answers. FINANCIAL STATEMENT ANALYSIS Slovo Corporation had pre-tax profits of R 1.2 million, an average tax rate of 35% and it paid preference share dividends of R 80 000. There were 80 000 shares outstanding and no interest expense. What was Slovo Corporations earning per share? (R8.75) (May/June 2009) A firm has fixed assets worth R1 000 000 and accounts payables worth R20 000. The firm owes R440 000 on a mortgage bond and has R120 000 in current assets. Its owners equity equals to (R660 000) (May/June 2009) A firm with sales of R1 000 000, net profits after taxes of R30 000 total assets of R1 500 000 and total liabilities of R30 000, total assets of R1 500 000 and total liabilities of R750 000 has a return on equity of (4%) (May/June 2009) Similar questions in your guides, tutorial letters and prescribed questions in your guides, tutorial letters and prescribed textbook FINANCIAL STATEMENT ANALYSIS(FSA) You will need to know how to calculate the statement of retained earnings. Example format is provided above; A firm had as at year-end 2004 and 2005 retained earnings balances of R670 000 and R560 000 respectively. The firm paid R10 000 in dividends in 2005. The firms net profit after taxes for 2005 was R670 000 + Net profit Dividends paid = R560 000 R670 000 + NP 10 000 = R560 000, so NP = - R100 000 (FSA) Statement of Retained Earnings Liquidity Ratios Ratios Current Ratio Quick Ratio Activity Ratios Inventory Turnover Average Age of Inventory Average Collection Period Average Payment Period Payment Period Total Asset Turnover Price Earnings (P/E) Ratio Market/Book (M/B) Ratio At the end of 2007, Heaton Industries the end of 2007 Heaton Industries reported retained earnings of R675 000 and it had R172 500 worth of net income during the year. The previous year the company had reported R555 000 in retained earnings. If the company purchased no shares during 2007 how much shares during 2007, how much dividends did it pay during 2007? (R52 500) Financial Leverage Ratios Financial Leverage Ratios Debt Ratio Profitability Ratios Common-Size Income Statements Gross Profit Margin Operating Profit Margin (OPM) Net Profit Margin (NPM) Earnings Per Share (EPS) Return on Total Assets (ROA) on Total Assets (ROA) Return on Equity (ROE) Note: Work through ratio analysis. (R (Remember that formulae are not th provided in the final exam so you will have to master them!) FSA (Financial Ratios) Which one of the following statements is correct? th A reduction in inventories held will have no effect on the current ratio on the current ratio. An increase in inventories will have no effect on the current ratio current ratio. If a firm increases its sales while holding its inventories constant then its inventory turnover will inventories constant, then its inventory turnover will increase if all other factors are held constant. A reduction in the inventory turnover will generally reduction in the inventory turnover will generally lead to an increase in the return on equity (ROE). EXAMPLES An organisation with a gross profit margin that meets the industry standards, but a net profit margin that is below the industry fit th th standards, must have excessive ... cost of goods sold. dividend payments. principal payments. general and administrative expenses and administrative Practice questions A firm with a substandard return on total assets can improve its return on equity, all else equal, by increasing its total asset turnover increasing its debt ratio decreasing its debt ratio decreasing its total asset turnover ( Answer increasing the debt ratio) The DuPont system of analysis is used to dissect DuPont system analysis is used to dissect the firms financial statements and to assess its financial condition. It merges the income statement and balance sheet into two th summary measures of profitability: ROA and ROE as shown in the equation below. Practice questions (The Du Pont) Practice questions (The Du Pont) R 500 Preference share R 126 R 600 Ordinary shares Account receivable Interest expense Total operating expenses R 1000 40% 18 R 1800 The firms earnings that were available for ordinary shareholders for 2009 were -R224.00 R195.00 R302.40 R516.00 outstanding outstanding dividends Tax rate of goods sold R 3060 Cost of goods sold Sales revenue Practice questions Please note that Bad debts and depreciation are never included in the cash budget because they are considered non cash items. Assignment 01, Questions 15-17 GENERAL FORMAT OF A CASH BUDGET R136 000 R 98 000 R180 000 R 16 000 R196 000 R 60 000 R R 64 000 R (20 000) Purchases Rent & Salaries Total Purchases (b) Net Sales (a-b) Opening Balance End Balance Minimum Balance Surplus financing R 44 000 44 000 4 000 R234 000 R256 000 R142 000 000 R (20 000) R162 000 R 64 000 R 16 000 R120 000 R114 000 R 76 000 Credit Sales (38%) Total Sales (a) R120 000 R200 000 November R180 000 R300 000 October Cash Sales (60%) Sales September (Actual) R200 000 R202 000 000 R (20 000) R222 000 R162 000 R 60 000 R106 000 R 16 000 R 90 000 R166 000 R 76 000 R 90 000 R150 000 December 1. Discuss the role of time value in finance 2. The concept of future value and present value, their calculation for single amounts 3. Find the future value and the present value of both an ordinary annuity and an annuity due, and the present value of a perpetuity. 4. Calculate both the future value and the present value of a mixed stream of cash flows. 5. Understand the effect that compounding interest more frequently than annually has on future value and the effective annual rate of interest. 6. Describe the procedures involved in (1) determining deposits needed to accumulate to a future sum, (2) loan amortization, (3) finding interest or growth rates, and (4) finding an unknown number of periods. TIME VALUE FOR MONEY TIME VALUE FOR MONEY FV = R 800 X (1 + 0.06)5 = 800 X 1.338 =R 1 070.40 Jane Farber places R800 in a savings account paying 6% interest compounded annually. She wants to know how much money will be in the account at the end of five years. Future Value of a Single Amount = R 1 700 X PVIF8%, 8 PV = R 1 700/(1 + 0.08)8 = 1 700/1.851 = 918.42 Pam Valenti wishes to find Valenti wishes to find the present value of $1,700 that will be received 8 years from now. Pams opportunity cost is 8%. Present Value of a Single Amount: FVA = $5,751 $5 = $1,000 (5.751) = $1,000 (FVIFA,7%,5) $1,000 (FVIFA,7%,5) Fran Abrams wishes to determine how much money she will have at the end of 5 years if he deposits (at the end of every year) R 1 000 into an account earning 7% annually. Annuities (ordinary) = $6,154 = $1,000 (5.751) (1.07) FVA = $1,000(FVIFA,7%,5)(1+.07) Fran Abrams now wishes to calculate the future value of an annuity due if he deposits (at the beginning of every year) R 1 000 in to an account earning 7% for 5 yrs Annuities (Due) PV PV= 1 000/0.08 = R12 500 A perpetuity is a special kind FV of a Mixed Stream Mi St of annuity. With a perpetuity, the periodic annuity or cash flow stream continues forever. For example, how much would I have to deposit today in order to withdraw R1,000 each year forever if I can earn 8% on my deposit? Calculate the FV of a mixed stream if the opportunity cost is stream if the opportunity cost is PV=Annuity/interest rate 8%? Present Value of a Perpetuity FV OF A MIXED STREAM 0 1 yr 2yrs Fred Moreno has found an institution that will pay him 8% annual interest, compounded quarterly. If he leaves R 100 in the account for 24 months (2 years), he will be paid 2% interest compounded over eight periods. Compounding Interest More Frequently Than Annually = R100 X 2.71830.16 = R100 X 1.1735 = R117.35 FV = R100 X e0.08 X 2 Fred Moreno deposits R100 into an account paying 8% annual interest compounded continuously. Find the future value of this investment after 2 years of this investment? Continuous Compounding FVA = PMT X FVIFA PMT = 30 000/5.637 30 000/5 Hence = PMT = FVA = 5 321.98 FVIFA Suppose you want to buy a house 5 years from now and you estimate that the down payment needed will be R30,000. How much would you need to deposit at the end of each year for the next 5 years to accumulate R30,000 if you can earn 6% on your deposits? Calculating payments (PMT) PVIFi, 5YRS = PV/FV = 1250/1520 = 0.822 = 5% Find the rate of interest or the of rate interest or growth for the following stream of cashflows? Interest or Growth Rates Practice questions 11-15 of assignment 01, May/June 09, 01 09 October/November 09. PVIF8%, n = PV/FV = 1000/2500 = 0.400 or 12 Yrs Mrs Bates wishes to know the number of years it will take for her initial R 1 000 earning 8% per annum to grow to R 2 500 Finding Number of Periods Game room wishes to determine the returns of its video machine Conqueror. It was purchased 1 year ago for R20,000 and currently has a market value of R21,500. During the year, it generated R800 worth of after-tax receipts. Defining return = Cf+Pt-Pt-1 return Cf+Pt Pt-1 20 000 Choose the better of two investments, A and B. Each requires an initial outlay of R10,000 and each has a most likely annual rate of return of 15%. Management has made pessimistic and optimistic estimates of the returns associated with each. Risk preferences Risk preferences Risk-averse Risk-indifferent Risk-seeking Return = 800 + 21 500 - 20 000 Risk and Return Risk of a Single Asset Standard Deviation Deviation Expected Return Review questions 6 (assignment 02,and18 assignment 01. First semester 01 Fi The coefficient of variation, CV, is a measure of relative dispersion that is useful in comparing risks of assets with differing expected returns. Coefficient of Variation In the same way the beta of a portfolio will be calculated using this formula. Qn 10 sem 2 In this case you calculate the weight/proportion of every asset in the portfolio, multiply it by its beta and find the total beta of that portfolio. You will also need to know the implication of beta values. The return of a portfolio is a weighted average of the returns on the individual assets from which it is formed and can be calculated as shown in Equation 5.5. Portfolio Return For premium bonds, the current yield > YTM. discount bonds the current yield YTM For discount bonds, the current yield < YTM. Valuation of stocks and bonds is done In a similar manner. Practice question 13 assignment 01. Basic Valuation Model A Par value company bond pays interest semiannually, the required stated annual return is 12% and it has 10 yrs to maturity. Calculate PV Bond corporation issued R1000 par value bonds bearing a coupon rate of 12% and paying coupons semi annually. The bonds have 3yrs remaining to maturity and are priced at R940 per bond. What is the annual yield to maturity? Coupon=12%X1000=120/2 Periods N= 3X2= 6 FV= 1 000 PV= 940 compute I = 7.27X2 = 14.54% Calculating YTM, PV & FV E(r) = 1/25 + .07 = 11% For example, if the firms $1 dividend on a $25 stock is expected to grow at 7%, the expected return is: E(r) = D1 /P + g Stock Returns are derived from both dividends and capital gains, where the capital gain results from the appreciation of the stocks market price due to the growth in the firms earnings. Mathematically, the expected return may be expressed as follows: Common Stock Valuation Basic Stock Valuation Equations Practice question assignment 01. 14 P0 = R1.50/(0.15 0.07) = R18.75 of Lamar Company, a small Lamar has just paid a dividend cosmetics company, paid the of R1.50 and expects dividends following per share dividends: to grow according to the schedule below. Calculate the price of Lamars share. Constant Growth Model 7 = R18.20/share. For example, Lamar s expected EPS is R2.60/share and the . industry average P/E multiple or P/E ratio is 7, then P0 = R2.60 X Question 4 assignment 01 P0 = (EPSt+1) X (Industry Average P/E) Some stocks pay no dividendsusing P/E ratios are one way to evaluate a stock under these circumstances. The model may be written as: Other Approaches (P/E) Multiples Central to short-term financial management is an understanding of the firms cash conversion cycle. Net Working Capital is defined as total current assets less total current liabilities. It also consists of current liabilities, including accounts payable (trade credit), notes payable (bank loans), and accrued liabilities. Working Capital includes a firms current assets, Capital firm current assets which consist of cash and marketable securities in addition to accounts receivable and inventories. Working Capital Management AAI or ACP the amount of to support operations. resources the firm must commit reducing cash conversion cycle, thus sales are cyclical, then investment in operating assets will vary over time, leading to the need for seasonal funding requirements in addition to the permanent funding requirements for its minimum investment in operating assets. lengthening APP will reduce the If Reducing If a firms sales are constant, then its investment in operating assets should also be constant, and the firm will have only a permanent or funding requirement. Permanent vs. Seasonal Calculating the OC & CCC Aggressive strategy the firm funds its seasonal requirement from short term debt while its permanent requirement from long term funds. Conservative strategy the firm funds both its seasonal and permanent requirements from long term debt. Apply the concepts and calculate the amount of financing required under each of the two methods of financing. Work through; Illustrations from Gitman chapter 14 and assignment 03 tutorial letter 101. Aggressive vs. Conservative Strategies Ignore the $ Signs (example used only for illustration purposes) Given this information, should Dodd relax its credit standards? Dodd is currently contemplating relaxation of credit standards Dodd is currently contemplating a relaxation of credit standards that is is anticipated to increase sales 5% to 63,000 units. It is also anticipated that the ACP will increase from 30 to 45 days, and that bad debt expenses will increase from 1% of sales to 2% of sales The opportunity cost of tying funds up in from 1% of sales to 2% of sales. The opportunity cost of tying funds up in receivables is 15%. Dodd Tool, a manufacturer of lathe tools, is currently selling a product for $10/unit. Sales (all on credit) for last year were 60,000 units. The variable cost per unit is $6. The firms total fixed costs are $120,000. Changing Credit Standards Example 60,000 10.00 $ $ $ Proposed Sales Level (units) Price/unit ($) Variable Cost/unit ($) Contributin Margin/unit ($) 2.0% 15.0% Opportunity Cost (%) 8.1 Proposed A/R Turnover (365/AR) A/R Turnover (365/AR) Proposed Bad Debt Level (% of sales) 12.2 Present A/R Turnover (365/AR) 1.0% 45.0 New Receivables Level (days) Present Bad Debt Level (% of sales) 30.0 Old Receivables Level (days) 4.00 6.00 63,000 Present Sales Level (units) Relevant Data Analysis of Relaxing Credit Standards Dodd Tool Company Tool Company $ 6.00 $ 10000 10.0 3,000 Contribution Margin/Unit $ 4.00 63,000 Variable Cost/Unit 60,000 P 60000 Pririce/Unit Addi nal Prof Cont AdditionalProfit Contributionnffrom Sales (salessiincr x cont margin) $ 12000 Sal crxcontmargi 12,000 Increase in Sales New Sales Level Old SalesLevel Sal s Level Additional Profit Contribution from Sales Analysis of Rexaxing Credit Standards Dodd Tool Company DoddTool Company Additional Profit Contribution from Sales Changing Credit Standards Example $ $ $ $ Total VC Under the Proposed Plan Average Investment Under Present Plan Average Investment Under Proposed Plan Marginal Investment in Accounts Receivable 378,000 360,000 $ $ o Marginal Bad Debts 2,574 Cost off Marginal Bad Debts Cost off Marginal Investment in Accounts Receivable o Marginal Investment in Accounts Receivable $ $ 15.0% Cost of Bad Debt under Proposed Plan Opportunity Cost 6,600 12,600 6,000 2.0% Bad Debt % under Proposed Plan of Bad Debt under Present Plan 17,158 Cost of Bad Debt under Present Plan 46,667 29,508 630,000 1.0% Total Sales under Proposed Plan 600,000 Bad Debt % under Present Plan Debt under Present Plan $ Total Sales under Present Pllan P Cost of Bad Debt = Bad Debt % x Total Sales $ $ Total VC Under the Present Plan Total VC = VC/Unit X # of Units Cost of Marginal Investment in A/R = Total VC/Turnover of A/R Cost of Marginal Bad Debt Analysis of Relaxing Credit Standards Analysis of Rexaxing Credit Standards Cost of Marginal IInvestment iin Accounts Receivable of Marginal nvestment n Accounts Receivable Dodd Tool Company Dodd Tool Company Changing Credit Standards Example Yes they should because they have profit from the plan Yes they should because they have a profit from the plan. Kindly note the positive and negative values and why they occur. When you relax credit standards you will expect to increase your sales but the marginal investment in accounts receivables will also increase and so will your bad debts. So you have to reconcile these effects these effects. 2,826 Net Profit From Implementation of Proposed Plan $ (6,600) Cost of Marginal Bad Debts 12,000 (2,574) $ Cost of Marginal Investment in Accounts Receivable Additional Profit Contribution from Sales Making the Credit Standard Decision Sta Analysis of Relaxing Credit Standards Dodd Tool Company Changing Credit Standards Example credit pd - discount pd Note: If the cost of giving up the cash discount exceeds the required return on borrowed funds the company should take the cash discount. Attempt practice questions in your tutorials and study guides. 100% - %discount Taking the Cash Discount the Cash Discount If a firm intends to take a cash discount, it should pay on the last day of the discount period. There is no cost associated with taking a cash discount. Giving Up the Cash Discount If a firm chooses to give up the cash discount, it should pay on the final day of the credit period. The cost of giving up a cash discount is the implied rate of interest paid to delay payment of an account payable for an additional number of days. Cost = % discount x 365________ Analyzing Credit Terms Interest Borrowed amount Once the nominal (stated) rate of interest is established the method of computing interest established, the method of computing interest is determined. Interest can be paid either when a loan matures or in advance. If interest is paid at maturity, the effective (true) rate of interest of interestassuming the loan is outstanding for the loan is outstanding for exactly one yearmay be computed as follows: Method of Computing Interest Sources of Short-Term Loans Review the practice examples in chapter 15 of your prescribed textbook. If the interest is paid in advance, it is deducted from the loan so that the borrower actually receives less money than so that the borrower actually receives less money than requested. Loans of this type are called discount loans. The effective rate of interest on a discount loan assuming it is outstanding for exactly one year may be computed as follows: Interest paid paid Amount borrowed interest paid Method of Computing Interest Sources of Short-Term Loans 1 4 4 1 4 4 16. 1. 6. 11. 16. 17. 12. 7. 2. 17. 12. 7. 2. Qn. Ans. 3 3 4 3 3 1 3 2 Ans. 1 1 4 2 19. 14. 9. 4. Qn. 18. 13. 8. 3. 2 4 2 3 19. 14. 9. 4. Assignment 02 Semester 1 18. 13. 8. 3. Qn. *The Zero denoted as an option implies that there was no correct solution for that question and students should just attempt it.......! 3 11. 4 6. Ans. 1. Qn. Assignment 01 semester 1 Ans. 1 1 3 3 4 3 1 2 20. 15. 10. 5. 20. 15. 10. 5. Qn. Ans. 4 2 2 0 1 4 2 3 As part of your preparation we encourage you to attempt questions from assignments 01 and 02 for the First semester 10. The suggested answers are provided here below: PRACTICE QUESTIONS KASOZI STEPHEN JASON AJH VAN DER WALT BUILDING RM 3-116 TEL: +27 12 429 4684 27 12 429 4684 EMAIL: kasozjs@unisa.ac.za GOOD LUCK WITH THE EXAM!!!
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University of South Africa - MNF2023 - 2023
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GENG200Probability and Statistics for EngineersTutorial - 1Question 1:Two balls are randomly drawn from a bowl containing 6 white and 5 black balls. What is theprobability that one of the drawn is white and the other black?Question 2:A class in pro
Qatar University - STATISTICS - 101
GENG200Probability and Statistics for EngineersTutorial - 1Question 1:Two balls are randomly drawn from a bowl containing 6 white and 5 black balls. What is theprobability that one of the drawn is white and the other black?Answer:The 1st drawn ball
Qatar University - STATISTICS - 101
CollegeofEngineering,QatarUniversityProbabilityandStatistics,GENG200Tutorial - 2Question 1:a) I fthesetsXandYarenon-mutuallyexclusive,showthat:P ( X Y ) = P ( X ) + P(Y ) P( X Y ) .b) Given two events X and Y, draw a Venn diagram to demons
Qatar University - STATISTICS - 101
CollegeofEngineering,QatarUniversityProbabilityandStatistics,GENG200Tutorial - 3Exercises Sections 3-1 Page 69:1) 3-12) 3-23) 3-34) 3-115) 3-126) 3-13Exercises Sections 3-2 Page 71:7) 3-148) 3-21Exercises for Section 3-3 Page 73:9) 3-29Exer
Qatar University - STATISTICS - 101
CollegeofEngineering,QatarUniversityProbabilityandStatistics,GENG200Tutorial - 3Question Sections 3-1 Page 69:1) 3-12) 3-23) 3-34) 3-115) 3-126) 3-13SOLUTION:3-1.3-2.3-3.3-11.3-12.3-13.The range of X is cfw_0,1,2,.,1000,The range of X i
Qatar University - STATISTICS - 101
CollegeofEngineering,QatarUniversityProbabilityandStatistics,GENG200Tutorial - 4Question Sections 3-97 Page 98:1) 3-97SOLUTION:3-97.X has a hypergeometric distribution N=100, n=4, K=20a.) P ( X= 1) =( )( ) = 20(82160) = 0.4191( ) 392122520 80
Qatar University - STATISTICS - 101
CollegeofEngineering,QatarUniversityProbabilityandStatistics,GENG200Tutorial - 52BQuestion Sections 5-1 Page 163:1) 5.12) 5-23) 5-8SOLUTION:5-1.First, f(x,y) 0. Let R denote the range of (X,Y).Then,f ( x, y ) = 1 + 1 + 1 + 1 + 1 = 148448
Qatar University - STATISTICS - 101
CollegeofEngineering,QatarUniversityProbabilityandStatistics,GENG200Tutorial - 62BQuestion Sections 6-1 Page 203:1) 6.12) 6-5SOLUTION:6-1. Sample average:nx=xi =1in=592.035= 74.0044 mm8Sample variance:8xi =1= 592.035i8xi =12i
Qatar University - STATISTICS - 101
CollegeofEngineering,QatarUniversityProbabilityandStatistics,GENG200Tutorial - 72BQuestion Sections 7-3 Page 242:1) 7.14SOLUTION:7-14 2n XiX 1 = E i =1 2nE()E (X 2 )n Xi= E i =1n2n = 1 E X = 1 (2n ) = 2n i 2n i =1 n = 1 E X = 1 (n
Qatar University - STATISTICS - 101
CollegeofEngineering,QatarUniversityProbabilityandStatistics,GENG200Tutorial - 82BQuestion Sections 8-2 Page 267:1) 8.3Answer:8-3a) A z = 1.29 would give result in a 90% one-sided confidence interval.b) A z = 1.65 would give result in a 95% one-s
Qatar University - STATISTICS - 101
CollegeofEngineering,QatarUniversityProbabilityandStatistics,GENG200Tutorial - 92BQuestion Sections 9-1 Page 303:1) 9-32) 9-43) 9-5Answer:9-3a) H 0 : = 20nm, H 1 : &lt; 20nmb) This result does not provide strong evidence that the standard deviatio
Qatar University - STATISTICS - 101
CollegeofEngineering,QatarUniversityProbabilityandStatistics,GENG200Tutorial - 4Chapter 3:Exercise: Section 3-8 Page 98:1) 3-97Exercise: Section 3-8 Page 98:2) 3-100Exercise: Section 3-9 Page 103:3) 3-110Exercise: Section 3-4 Page 77:4) 3-39Ex
Qatar University - PHYSICS - 101
Dr. Sabah AL-NaimiQatar UniversityPhysics ProgramFALL 2009PHYS191Physical Quantities, Units, and Conversion of Units The difference between SI units and cgsunits:Physical QuantitiesSI Unitscgs UnitsLength, distance, ordisplacementMeter : mCe
Qatar University - PHYSICS - 101
Dr. Sabah AL-NaimiQatar UniversityPhysics ProgramFALL 2009PHYS1911.1 Coordinate Systems A coordinate system used to specifylocations in space consists of: A fixed reference point O , called the origin. A set of specified axes with appropriate sca
Qatar University - PHYSICS - 101
Dr. Sabah AL-NaimiQatar UniversityPhysics ProgramFALL 2009PHYS 191(4.1) Work Done by a constant force The Work done on an object by a constantforce (F) is defined as:yFW F S (cos )sx Where : F is the magnitude of the force. S is the magnitu
Qatar University - PHYSICS - 101
Dr. Sabah AL-NaimiQatar UniversityPhysics ProgramFALL 2009PHYS191(8.1) Temperature &amp; Thermometers We associate the concept of temperature with how hot or cold anobjects feels. Our senses provide us with a qualitative indication of temperature. Tw
Qatar University - MATH - 201
Values Involving InverseTrigonometric Functions II( Finding arctrg(trgExamples IArcsinarcsin[sin( - / 4 (] = - / 4Notice that:- / 4 belongs to the range of the functiony = arcsinx,which is [ -/2 , /2 ]Arctanarctan[tan( - / 4 (] = - / 4Notice t
Qatar University - MATH - 201
Hyperbolic FunctionsThe Hyperbolic Sine, HyperbolicCosine &amp; Hyperbolic Tangentxe +ecosh x =2xxe esinh x =2xxsinh x e etanh x == x xcosh x e + exThe Inverse HyperbolicCotangent, Hyperbolic Secant &amp;Hyperbolic Cosecant1cosh x e x + e x
Qatar University - MATH - 201
Improper IntegralsDefinitions I+1.t f ( x)dx = lim f ( x)dxab2.t + ab f ( x)dx = lim f ( x)dxt tPr ovided these limits exist; in which case the integral is said to convergeto the value of the limits. Otherwise the integral is said to diver
Qatar University - MATH - 201
The Method of Integration byPartsMain IdeaIf u &amp; v are differentiable functionsof x, then(uv)' = uv'+vu ' uv' = (uv)'vu 'By integrating with respect to x,we get: uv' dx = (uv)' dx vu' dx udv = uv vduWhen to use this method?When the integrand i
Qatar University - MATH - 201
Inverse Hyperbolic FunctionsThe Inverse Hyperbolic Sine, InverseHyperbolic Cosine &amp; Inverse HyperbolicTangent1.f ( x) = arccos hxThe iverse of the function : g ( x) = cosh x ;dom f = [1, ),range f = [0, )2.f ( x) = arcsin hxThe iverse of the f
Qatar University - MATH - 201
Examples on Integrals InvolvingInverse Trigonometric FunctionsExamples I1.x31 x8.dx=x3.dx1 x34x184.dx1 x41= 4 arcsin x + c82.x3x dx4x 18x=143x dx4x 134 x dxx8x 141= 4 arc sec x + c482*xdxx 18x=14d
Qatar University - MATH - 201
Values Involving InverseTrigonometric Functions II( Finding arctrg(trgExamples IArcsinarcsin[sin( - / 4 (] = - / 4Notice that:- / 4 belongs to the range of the functiony = arcsinx,which is [ -/2 , /2 ]Arctanarctan[tan( - / 4 (] = - / 4Notice t
Qatar University - MATH - 201
Miscellaneous SubstitutionsExamples IRationalizing SubstitutionsdxExample (1)I= x +3 xLet x = u 6 dx = 6u 5 du12x = (u ) = u ,63313x = (u ) = u 2 , u = 6 x66u 5 du6u 3 duI = 3=2u +uu +1[(u 3 + 1) 1]du= 6u +112= 6 [u u + 1 ]
Qatar University - MATH - 201
ReviewTrigonometric IntegralsI. cosnx dxCase 1: n is an odd natural number1. cos x dx = sin x + c2.cos 3 x dx= cos 2 x cos x dx= (1 sin 2 x) cos x dx= (cos x sin 2 x cos x) dxsin 3 x= sin x +c31* .sin 20 x cos x dxsin 21 x=+c212 *. s
Qatar University - MATH - 201
Integrating Rational Functions bythe Method of Partial FractionExamples IWhen the power of the polynomialof the numerator is less than thatof the denominatorExample 18 4xdx ( x 2 + 1)( x 2 2 x + 1)Let8 4xr ( x) = 2( x + 1)( x 2 2 x + 1)The d
Qatar University - MATH - 201
The Method of TrigonometricSubstitutionMain IdeaThe method helps dealing with integrals, where the integrand containsone of the following expressions: (where a and b are constants)a bx2a + bx2ax b2A simpler forms of the former:expressions are
Korea Advanced Institute of Science and Technology - SCM - 101
Operation ManagementIntroduction to Operation Management:Operations Management is the management of that part of an organization that isresponsible for producing goods and /or services. There are examples of these goods and servicesall around us (ever
Missouri (Mizzou) - CS - 3380
Chapter 6Developing Data Models forBusiness DatabasesOutline Guidelines for analyzing businessinformation needs Transformations for generating alternativedesigns Finalizing an ERD Schema Conversion6-2Characteristics of Business DataModeling Pr