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4 Pages

### 202notes3__Ttests

Course: MKT 202, Spring 2010
School: DePaul
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Word Count: 1643

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9 Chapter The Significance of the Difference between Means The t-test for comparing the difference between two means Tests the hypothesis that the mean scores on some interval- or ratio-scaled variables will be significantly different for the two independent samples or groups How far apart do the two mean s have to be so that one can say the difference is not due to chance/sampling error Answer: resort to sampling...

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DePaul - MKT - 202
Analysis of VarianceDr. Myril Hillman04/26/111Types of ANOVAS Between Groups ANOVA: Samples separate, independent or Repeated Measures ANOVA : the same persons tested again and again.04/26/112One-Way and Two-Way ANOVAS One-Way: analyzes one var
DePaul - MKT - 202
CHI SQUAREMyril Hillman, Ph.D.04/26/111Chi Square: Test of Independence:Is there a significant difference between expected and observed frequencies?04/26/112Assumptions Random samples (big R) Not normal curve distribution Variables are qualitati
DePaul - MKT - 202
CorrelationDr. Myril Hillman04/26/111Measures the strength of a relationshipBut, correlation does not mean causation04/26/112Pearsons Product Moment CorrelationMost popular correlation Requires at least interval data Requires pairs of values Rela
DePaul - MKT - 202
Quantitative Methods 202Dr. Myril HillmanSales ForecastingMarket Demand Total volume bought by defined customer group in defined geographic area in defined marketing environment under a defined marketing programMarket Potential The limit approached
DePaul - MKT - 202
Index NumbersDr.Myril Hillman04/26/111Uses Marketing Economics04/26/112Measures ChangeChange in product/service (or collection of items)Between 2 time periods04/26/113ExampleCompare wages of employees for 1990 (\$8.50), 1995 (\$10.90) and 200
DePaul - MKT - 202
DepartmentofMarketing DePaulUniversity Winter2010 CollegeofCommerce MARKETING202 QuantitativeMethods Professor: OfficeLocation: OfficeHours: Telephone: Email: Dr.MyrilHillman DPC7524 Byappointment Office(312)3626210Fax:(312)3625647 mhillman@depaul.edu Cou
DePaul - MKT - 202
TWOCATEGORIES TWOCATEGORIES OFSTATISTICS1.DESCRIPTIVESTATISTICS 2.INFERENTIALSTATISTICSDESCRIPTIVESTATISTICS DESCRIPTIVESTATISTICSREPORTSOBSERVATIONS DESCRIBESBEHAVIOR/ATTRIBUTES/ ATTITUDESINFERENTIALSTATISTICS INFERENTIALSTATISTICSPREDICTIONSABOUTPO
DePaul - MKT - 202
PricingDr. Myril Hillman04/26/111Markup PricingExample: Toaster variable cost per unit fixed cost expected unit sales manufacturers unit cost \$10 \$300,000 50,000= variable cost+fixed costs unit sales04/26/11= \$10 + \$300,00 50,000= \$162Manufac
DePaul - MKT - 202
REGRESSION REGRESSIONDr. Myril HillmanBIVARIATE LINEAR REGRESSION* REGRESSION* Techniquefor measuring the linear association between a dependent and an independent variable*(EXCEL Chapter 11)Bivariate Linear Regression:Two-Variable Regression Regres
DePaul - MKT - 202
Statistical Quality ControlDr. Myril Hillman04/26/111Statistical Quality Control Involves sampling Each sample has a mean04/26/112Calculations Mean of the means Standard error of the mean04/26/113Control Charts: Graphical AnalysesControl li
DePaul - LSP - 200
Sophomore Seminar in Multiculturalism in America Religious Worlds and Worldviews LSP 200, Fall 2009 Quarter; T/Th 10:10-11:40 in Loop Room Prof. Yarina Liston, yliston@depaul.edu; Meetings scheduled by request. Course Description: The focus of this course
DePaul - HST - 239
1European Womens HistoryFall 2010, MW 11:20-12:50 HST 239, section 101 Instructor: Prof. Lisa Z. Sigel lsigel@condor.depaul.edu lsigel@depaul.edu Office: Lincoln Park SAC439, x 1773-325-4723 Hours: Monday before and after class, Wednesday before class a
DePaul - ACC - 101
Acc102 Students Quiz 1 Chapter 11 Answers will be given and discussed in class as part of lecture. 1. The start-up and organization costs of a corporation should a. be recorded and maintained as an intangible asset for the life of the corporation. b. be r
DePaul - ACC - 101
Chapter 13 The Corporate Income Statement and the Statement of Stockholders Equity Performance Measurement: Quality of Earnings Issues Objective 1: Define quality of earnings, and identify the components of a corporate income statement. Quality of earning
DePaul - ACC - 101
ACC102 C13 Student Practice Quiz ALL OBJECTIVES BUT not 7 calculating book value True-False 1. TF The conversion of preferred shares of stock into common shares would be disclosed in the statement of stockholders equity. 2. TF A stock dividend will increa
DePaul - ACC - 101
Second Quiz Will be Tuesday January 19 Quiz will be same format as quiz 1 all m/c questions It will cover: Previous Chapter 11 Questions Chapter 13 Quiz Questions 9, 17, 18, 19, 20, 21, 22, 29, 33, 35, 43,44, 47 Make sure you know advantages and disadvant
DePaul - ACC - 101
C17 small Practice quiz L1 acc102 1. In which step of the management process would information from a product costing system be used to forecast unit costs? a. Performing b. Planning c. Evaluating d. Communicating 2. TF A brewery would probably use a proc
DePaul - ACC - 101
PRACTICE QUIZ 1 C19 True-False 1. Managers use their knowledge of cost behavior to estimate the impact of changes in operations (such as changing output volume) on future profitability. 2 The traditional definition of variable cost assumes a linear relati
DePaul - ACC - 101
C20 PQ1 True-False 1. When managers plan, they use budget information to review variances that suggest waste in operating activities. 2. During the year, managers use budget information to communicate expectations about performance, to measure performance
DePaul - ACC - 101
Lauren c20 after 1. a. b. c. d. Participative budgeting is the key to a successful budgeting process because senior executives set goals and expect all employees to implement them. the budget director prepares the master budget and its supporting budgets.
DePaul - ACC - 101
C21 PQ1 C21 Los 2-6 Not oneTrue-False 1. 2. 3. 4. 5. 6. 7.T T T T T TF F F F F FThe balanced scorecard assumes an organization will get what it measures. An effective performance management and evaluation system focuses primarily on financial performa
DePaul - ACC - 101
C21 PQ2 (L) 1. a. b. c. d. During the planning step of the management process, the balanced scorecard provides reports that enable managers to monitor performance measures. performance measures for evaluating managers strategies. a framework that enables
DePaul - ACC - 101
For Chapter 22 only learning objective 3C22 Lo3: Prepare a flexible budget, and describe how managers use variance analysis to control costs. Brief Overview Variance analysis is the process of computing the differences between standard costs and actual c
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Chapter10EmotionalandSocialDevelopmentinMiddle Childhood 19:02 EricksonsTheory IndustryvsInferiority:expectationsparentsputontheirkids.Whenthechildcan meetthosegoalsthentheywillfeeltheyhavethecompetenceandconfidence thattheycangetthosethingsdone.VSplacin
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Chapter4Physicaldevelopmentininfancyand toddlerhood(birth2yrs)18:12BodyGrowth Growthinintenseduringfirsttwoyears.Doublebirthheightbytheendofthe firstyear.Bytheendof2ndyearitwouldbe75%tallerthanbirthheight By5monthsdoublebirthweight.By1yeartripledweightg
Purdue - MA - 366
Purdue - MA - 366
MA 366 Spring 2011 AssignmentsFor Wednesday 1/12: Read 1.21.3. Do: p. 25: 7, 9, 16 p. 360, The answer to Exercise 8 is given in the back of the text. Substitute the given functions x1 and x2 into the the system to show that they do solve the system. Show
Purdue - MA - 366
The Exponential Series1Section 1X = AX X (0) = [1, 1]t 2 1 4 2 (1)We consider the initial value problemwhere A=Then (as you can check) det(A I ) = 2 so the only eigenvalue is = 0. The equation AXo = 0Xo is equivalent with the system xo + 2yo = 0 4xo
Purdue - MA - 366
MA366 Make-up FinalLast Name:First Name:Show all work. A correct answer without supporting work is worth NO credit! (Some calculators can solve dierential equations.) There should be no hard integrals, unless you mess up somewhere. If this happens, jus
Purdue - MA - 366
MA366 FinalLast Name:First Name:Show all work. A correct answer without supporting work is worth NO credit! (Some calculators can solve dierential equations.) There should be no hard integrals, unless you mess up somewhere. If this happens, just leave
Purdue - MA - 366
Purdue - MA - 366
Purdue - MA - 366
Purdue - MA - 366
Chapter 1Systems1.1 On LineIn this introductory section we will pose no exercises, but instead, will detail how to use Maple to solve problems in linear algebra. For the novice Maple user, this section is essential reading and reference. For the experi
Purdue - MA - 366
%!PS (but not EPSF; comments have been disabled) /TeXDict 200 dict def TeXDict begin /N /def load def /Bcfw_bind defN /S /exch load def /Xcfw_S NB /TR /translate load N /isls false N /vsize 10 N /@rigincfw_ islscfw_[0 1 -1 0 0 0]concatif 72 Resolution div
Purdue - IE230 - 230
IE 230Seat # _ Closed book and notes. 60 minutes. Cover page and four pages of exam. Pages 8 and 12 of the Concise Notes. No calculator. No need to simplify answers.Name _ &lt; KEY &gt; _This test is cumulative, with emphasis on Section 4.8 through Section 5
Purdue - IE230 - 230
IE 230Seat # _Name _ Closed book and notes. 60 minutes. Cover page and four pages of exam. No calculator.This exam covers event probabilities and the denition of random variables. Chapter 2 of Montgomery and Runger, fourth edition. A true/false questio
Purdue - IE230 - 230
IE 230Seat # _ Closed book and notes. 60 minutes. Cover page and four pages of exam. No calculator.Name _ &lt; KEY &gt; _This exam covers event probabilities and the denition of random variables. Chapter 2 of Montgomery and Runger, fourth edition. A true/fal
Purdue - IE230 - 230
IE 230Seat # _ Please read these directions.Name _Closed book and notes. 60 minutes. Covers through the normal distribution, Section 4.7 of Montgomery and Runger, fourth edition. Cover page and four pages of exam. Page 8 of the Concise Notes. No calcul
Purdue - IE230 - 230
IE 230Seat # _ Please read these directions. Closed book and notes. 60 minutes.Name _ &lt; KEY &gt; _Covers through the normal distribution, Section 4.7 of Montgomery and Runger, fourth edition. Cover page and four pages of exam. Page 8 of the Concise Notes.
Purdue - IE230 - 230
IE 230Seat # _Name _Closed book and notes. 60 minutes. Cover page and four pages of exam. Pages 8 and 12 of the Concise Notes. No calculator. No need to simplify answers. This test is cumulative, with emphasis on Section 4.8 through Section 5.5 of Mont
Purdue - IE - 230
Quiz 10. April 20, 2011Seat # _Name: _ &lt; KEY &gt; _Closed book and notes. No calculator. Recall: X = in=1 Xi / n Recall: S 2 = [in=1 Xi 2 nX ] / (n 1) Consider a sample containing the data 14.2, 30.4, 8.1, 34.5, 8.7, 5.5. 1. (2 points) Determine the sampl
Purdue - IE - 230
Quiz 1. January 19, 2011Seat # _Name: _Closed book and notes. No calculators. Set theory. For all questions below, consider the universe U = cfw_1, 2, 3, 4, 5, 6. Let E = cfw_2, 4, 6, the set of even integers. Let L = cfw_4, 5, 6, the set of large inte
Purdue - IE - 230
Quiz 1. January 19, 2011Seat # _Name: _ &lt; KEY &gt; _Closed book and notes. No calculators. Set theory. For all questions below, consider the universe U = cfw_1, 2, 3, 4, 5, 6. Let E = cfw_2, 4, 6, the set of even integers. Let L = cfw_4, 5, 6, the set of
Purdue - IE - 230
Quiz 2. January 26, 2011Seat # _Name: _Closed book and notes. No calculators. In probability, we always have an experiment. 1. (1 pt) The set of all _ is called the sample space. 2. (1 pt) Each _ of the experiment results in exactly one outcome. 3. (1
Purdue - IE - 230
Quiz 2. January 26, 2011Seat # _Name: _ &lt; KEY &gt; _Closed book and notes. No calculators. In probability, we always have an experiment. 1. (1 pt) The set of all _ &lt; outcomes&gt; _ is called the sample space. 2. (1 pt) Each _ &lt; replication &gt; _ of the experim
Purdue - IE - 230
Quiz 3. February 4, 2011Seat # _Name: _Closed book and notes. No calculators. Recall: (Total Probability) If B 1, B 2, . . . , Bn partition the sample space S , then P(A ) = P(A | B 1) P(B 1) + P(A | B 2) P(B 2) + . . . + P(A | Bn ) P(Bn ). Questions 1
Purdue - IE - 230
Quiz 3. February 4, 2011Seat # _Name: _ &lt; KEY &gt; _Closed book and notes. No calculators. Recall: (Total Probability) If B 1, B 2, . . . , Bn partition the sample space S , then P(A ) = P(A | B 1) P(B 1) + P(A | B 2) P(B 2) + . . . + P(A | Bn ) P(Bn ). Q
Purdue - IE - 230
Quiz 4. February 16, 2011Seat # _Name: _Closed book and notes. No calculator. Circle all correct answers. 1. (2 pts) For a discrete random variable X , the probability mass function is f X (6) = P(X = 6) P(X &lt; 6) P(X 6) P(X &gt; 6) P(X 6)2. (2 pts) For a
Purdue - IE - 230
Quiz 4. February 16, 2011Seat # _Name: _ &lt; KEY &gt; _Closed book and notes. No calculator. Circle all correct answers. 1. (2 pts) For a discrete random variable X , the probability mass function is f X (6) = P(X = 6) P(X &lt; 6) P(X 6) P(X &gt; 6) P(X 6)2. (2
Purdue - IE - 230
Quiz 5. February 23, 2011Seat # _Name: _Closed book and notes. No calculator. For Questions 15, consider a sequence of units coming off an assembly line. Each is defective with probability 0.01 (and otherwise not defective). Assume that different units
Purdue - IE - 230
Quiz 5. February 23, 2011Seat # _Name: _ &lt; KEY &gt; _Closed book and notes. No calculator. For Questions 15, consider a sequence of units coming off an assembly line. Each is defective with probability 0.01 (and otherwise not defective). Assume that diffe
Purdue - IE - 230
Quiz 6. March 2, 2011Seat # _Name: _Closed book and notes. No calculator. Consider the experiment of choosing a random IE230 class day (that you attend). Let X denote the time (in minutes) that you spend walking to class. (a) (2 points) Sketch the dens
Purdue - IE - 230
Quiz 7. March 23, 2011Seat # _Name: _Closed book and notes. No calculator. From Problem 4-88, Montgomery and Runger, fourth edition. Assume that the distance between major cracks in a highway follows an exponential distribution with a mean of ve miles.
Purdue - IE - 230
Quiz 7. March 23, 2011Seat # _Name: _ &lt; KEY &gt; _Closed book and notes. No calculator. From Problem 4-88, Montgomery and Runger, fourth edition. Assume that the distance between major cracks in a highway follows an exponential distribution with a mean of
Purdue - IE - 230
Quiz 8. March 30, 2011Seat # _Name: _Closed book and notes. No calculator. From Problem 5-1, Montgomery and Runger, fourth edition. probability mass function in the following table. x y f X ,Y (x ,y ) 1 1 0.1 1.5 2 0.3 1.5 3 0.2 2.5 4 0.15 3 5 0.25Con
Purdue - IE - 230
Quiz 8. March 30, 2011Seat # _Name: _ &lt; KEY &gt; _Closed book and notes. No calculator. From Problem 5-1, Montgomery and Runger, fourth edition. probability mass function in the following table. x y f X ,Y (x ,y ) 1 1 0.1 1.5 2 0.3 1.5 3 0.2 2.5 4 0.15 3
Purdue - IE - 230
Quiz 9. April 6, 2011Seat # _Name: _Closed book and notes. No calculator. From Problem 5-17, Montgomery and Runger, fourth edition. Consider the probability density function (pdf) f X ,Y (x , y ) = c x y for 0 x 3, 0 y 3 and zero elsewhere. 1. (2 point
Purdue - IE - 230
Quiz 9. April 6, 2011Seat # _Name: _ &lt; KEY &gt; _Closed book and notes. No calculator. From Problem 5-17, Montgomery and Runger, fourth edition. Consider the probability density function (pdf) f X ,Y (x , y ) = c x y for 0 x 3, 0 y 3 and zero elsewhere. 1
Purdue - IE - 230
Quiz 10. April 20, 2011Seat # _Name: _Closed book and notes. No calculator. Recall: X = in=1 Xi / n Recall: S 2 = [in=1 Xi 2 nX ] / (n 1) Consider a sample containing the data 14.2, 30.4, 8.1, 34.5, 8.7, 5.5. 1. (2 points) Determine the sample size.2
Purdue - IE - 230
IE 230Probability and Statistics in Engineering, IWeb Page: http:/www.ecn.purdue.edu/ie230/ Spring 2011 MWF 1:30pm, GRIS 180 Professor B.W. Schmeiser Grissom 228 Ofce Hours: Help Sessions: School of Industrial Engineering Purdue Universitybruce@purdue.e