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MATH 221  Statistics For Decision Making  DeVry Chicago Study Resources
 DeVry University (DeVry Chicago)
 Beth Dodson

MATH221_W2_Lab Nealia Francis
School: DeVry Chicago
Course: Statistics For DecisionMaking
Statistics Lab Week 2 Name:_Nealia Francis_ Math221 Statistical Concepts: Using MINITAB Graphics Shapes of Distributions Descriptive Statistics Empirical Rule Data in MINITAB MINITAB is a powerful, yet userfriendly, data analysis software package. Y

statistics maths 221 DeVry
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
Statistics for Decision Making final exam 1. Question: (TCO 9) The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected s

Final_exam_review_detailed_answers
School: DeVry Chicago
Course: Statistics For Decision Making
Final Exam Review Questions Solutions Guide You will probably want to PRINT THIS so you can carefully check your answers. Be sure to ask your instructor if you have questions about any of the solutions given below. 1. Explain the difference between a popu

quiz # 2 week 5
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
There are 2 pages in this exam: Page: 1 2 1. Question: (TCO4)Threemembersofaclubwillbeselectedtoserveasofficers.Thefirstpersonselectedwillbe president,thesecondpersonwillbevicepresidentandthethirdwillbesecretary/treasurer.Howmany wayscantheseofficersbesel

ChiSquared Distributions
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
CHISQUARED DISTRIBUTIONS What is a chisquared distribution? We have previously discussed the Standard Normal curve and the associated distribution. Z was the term for the standard normal random variable. How is distributed? The answer is a chisquared d

week 3 quiz
School: DeVry Chicago
Course: Statistics For Decision Making
1. Question: (TCO1)Whatmethodofdatacollectionwouldyouusetocollectdataforastudywhereapoliticalpollster wishestodetermineifhiscandidateisleadinginthepolls? Your Answer: useasimulation performaanexperiment takeacensus usesampling ( asubsetofthepopulationisob

kofman_v_week2lab
School: DeVry Chicago
Course: Statistics For DecisionMaking
Math 221 Week 2 Lab Submitted by: Vitaliy Kofman Part 1. Random Sampling It's important for auditors to randomly select files to audit because it will save time and will give them a good overall idea how most of the files are doing. By using the random sa

MATH221_W6_Lab Your_Name_Here
School: DeVry Chicago
Course: Statistics For Decision Making
Statistics Lab #6 Name:_ Statistical Concepts: Data Simulation Discrete Probability Distribution Confidence Intervals Calculations for a set of variables Open the class survey results that were entered into the MINITAB worksheet. We want to calculate t

MATH 221 Wk 6 Lab
School: DeVry Chicago
Course: STATISTICS
zScore 3.50 3.25 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 Area to the Left 0.00023 0.00058 0.00135 0.00298 0.00621 0.01222 0.02275 0.04006 0.06681

MATH221_W4_Lab
School: DeVry Chicago
Course: Statistics For Decision Making
Statistics Lab Week 4 MATH221 Statistical Concepts: Probability Binomial Probability Distribution Calculating Binomial Probabilities Open a new MINITAB worksheet. We are interested in a binomial experiment with 10 trials. First, we will make the proba

Week 5 Quiz
School: DeVry Chicago
Course: Statistics For DecisionMaking
Week5:NormalProbabilityDistributionsQuiz 1. Question: (TCO4)HowmanywayscananEMTunioncommitteeof5bechosen from25EMTs? StudentAnswer: 100 125 15,504 53,130(Ch4:Orderdoes notmatter:25C5= 53,130) PointsReceived: Comments: 2. Question: 0of3 (TCO4)Whichofthefo

Week 5 quiz math221on statistics
School: DeVry Chicago
Course: Statistics For Decision Making
Week 5 quiz math221on statistics 1. Question: (TCO4)HowmanywayscananEMTunioncommitteeof5bechosenfrom25EMTs? Your Answer: 100 125 15,504 53,130 ( Ch4:Orderdoesnotmatter:25C5=53,130 ) CORRECT Points Received: 5 of 5 2. Question: (TCO4)Whichofthefollowingcan

_Week_4_Lab1
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
Math 221 Week 4 Lab Submitted by: Part 1. CrossReference Tables and Probability 1. What is the probability that the cereal would be high calorie? In other words, what is P(high calorie)? a. Phigh calorie=number of high calorie cerealstotal number of ceri

Week 3 Quiz
School: DeVry Chicago
Course: Statistics For DecisionMaking
Week3:RulesofProbability,ProbabilityAnalysisQuiz 1. Question: (TCO1)Whatmethodofdatacollectionwouldyouusetocollectdatafor astudyofthesalariesofcollegeprofessorsataparticularcollege? StudentAnswer: useasimulation performanexperiment usesampling takeacensu

MATH 221 Practice Quiz Week 2
School: DeVry Chicago
Course: STATISTICS
Math 221  Statistics Practice Quiz Week 2 This quiz review covers materials from Weeks 1 and 2. Your quiz will be in Week 3 located in the Quiz Tab. Your quiz will mostly comprise of multiple choice, true/false, and essay questions. The answers are at th

Template_of_Week6Lab_Excel
School: DeVry Chicago
zScore 3.50 3.25 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 Area to the Left 0.00023 0.00058 0.00135 0.00298 0.00621 0.01222 0.02275 0.04006 0.06681

Lab_2_stats
School: DeVry Chicago
Course: Statistics For Decision Making
Statistics Lab Week 2 Name:_Shaji Ali_ Math221 Statistical Concepts: Using MINITAB Graphics Shapes of Distributions Descriptive Statistics Empirical Rule Data in MINITAB MINITAB is a powerful, yet userfriendly, data analysis software package. You ca

_Week_4_Lab1
School: DeVry Chicago
Math 221 Week 4 Lab Submitted by: Part 1. CrossReference Tables and Probability 1. What is the probability that the cereal would be high calorie? In other words, what is P(high calorie)? a. Phigh calorie=number of high calorie cerealstotal number of ceri

MATH221_W6_
School: DeVry Chicago
Course: Stats
Statistics Lab #6 Name: Statistical Concepts: Data Simulation Discrete Probability Distribution Confidence Intervals Calculations for a set of variables Open the class survey results that were entered into the MINITAB worksheet. We want to calculate

Statistics for Decision Making final exam
School: DeVry Chicago
Course: Statistics For Decision Making
Statistics for Decision Making final exam 1. Question: (TCO 9) The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected s

MATH221_W4_Lab T
School: DeVry Chicago
Statistics Lab Week 4 Name: MATH221 Statistical Concepts: Probability Binomial Probability Distribution Calculating Binomial Probabilities Open a new MINITAB worksheet. We are interested in a binomial experiment with 10 trials. First, we will make the

20101010_150612_week6lab_solution
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
Math 221 * Example Format * Week 6 Lab Submitted by: (Insert Name) Part 1. Normal Distributions and Birth Weights in America 1(a) 37 to 39 weeks as mean is around 7.33 lb. 1(b) 40 weeks as mean is around 7.72 lb. 1(c) 28 to 31 weeks as mean is 4.07 lb. 2(

Final_exam_review_detailed_answers
School: DeVry Chicago
Course: Statistics For DecisionMaking
Final Exam Review Questions Solutions Guide You will probably want to PRINT THIS so you can carefully check your answers. Be sure to ask your instructor if you have questions about any of the solutions given below. 1. Explain the difference between a popu

MATH221_W6_Lab T
School: DeVry Chicago
Statistics Lab #6 Name:_ Statistical Concepts: Data Simulation Discrete Probability Distribution Confidence Intervals Calculations for a set of variables Open the class survey results that were entered into the MINITAB worksheet. We want to calculate

Probability Distributions
School: DeVry Chicago
Course: Statistics For Decision Making
The Normal Probability Distribution and Zscores Using the Normal Curve to Find Probabilities Carl Gauss The normal probability distribution or the "normal curve" is often called the Gaussian distribution, after Carl Friedrich Gauss, who discovered man

20100713_000202_week2lab_solutiononline
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
Math 221 * Example Format * Week 2 Lab Submitted by: Part 1. Random Sampling Ordered Sample AA AE AK AN AP AU AX BA BB BG BM BQ BT CB CE CK CQ CT CU CV Files should be selected randomly for auditing to avoid biasness. It is not always possible to audit al

Final_exam_review
School: DeVry Chicago
Course: Statistics For Decision Making
Final Exam Review Questions You should work each of the following on your own, then review the solutions guide. DO NOT look at the solutions guide first. 1. Explain the difference between a population and a sample. In which of these is it important to dis

Practice Quiz Week 6
School: DeVry Chicago
Course: Statistics For Decision Making
Math 221 Quiz Review for Weeks 5 and 6 1. 2. Find the area under the standard normal curve between z = 1.6 and z = 2.6. A business wants to estimate the true mean annual income of its customers. It randomly samples 220 of its customers. The mean annual in