Applied Statistics in Business and Economics

5th Edition

ISBN: 9780077837303

Author: David Doane, Lori Seward Senior Instructor of Operations Management

Publisher: McGraw-Hill Education

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Textbook Question

Chapter 15, Problem 25CE

Instructions: In all exercises, include software results (e.g., from Excel, MegaStat, or Minitab) to support your calculations. State the hypotheses, show how the degrees of freedom are calculated, find the critical value of chi-square from Appendix E or from Excel’s function =CHISQ.INV.RT(alpha, deg_freedom), calculate the chi-square test statistic, and interpret the p-value. Tell whether the conclusion is sensitive to the level of significance chosen, identify cells that contribute the most to the chi-square test statistic, and check for small expected frequencies. If necessary, you can calculate the p-value by using Excel’s function =CHISQ. DIST.RT(test statistic, deg_freedom). Note: Exercises marked * are harder or require optional material.

Choose either 2 × 2 contingency table shown below (males or females). Research question: At α = .005, is smoking independent of race?

Chapter 15, Problem 25CE, Instructions: In all exercises, include software results (e.g., from Excel, MegaStat, or Minitab) to

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Chapter 15, Problem 24CE

Chapter 15, Problem 26CE

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Chapter 15 Solutions

Applied Statistics in Business and Economics

Ch. 15.1 - Instructions: For each exercise, include software...Ch. 15.1 - Instructions: For each exercise, include software...Ch. 15.1 - Instructions: For each exercise, include software...Ch. 15.1 - Instructions: For each exercise, include software...Ch. 15.1 - Prob. 5SE Ch. 15.2 - U.S. market share for smartphones with larger...Ch. 15.2 - Prob. 7SE Ch. 15.3 - Prob. 8SE Ch. 15.3 - Prob. 9SE Ch. 15.3 - In a three-digit lottery, each of the three digits...

Ch. 15.3 - Prob. 11SE Ch. 15.4 - Excel was asked to generate 50 Poisson random...Ch. 15.4 - Prob. 13SE Ch. 15.4 - Prob. 14SE Ch. 15.5 - Exam scores of 40 students in a statistics class...Ch. 15.5 - One Friday night, there were 42 carry-out orders...Ch. 15.6 - Prob. 17SE Ch. 15.6 - Prob. 18SE Ch. 15 - Prob. 1CR Ch. 15 - Prob. 2CR Ch. 15 - Prob. 3CR Ch. 15 - Prob. 4CR Ch. 15 - Prob. 5CR Ch. 15 - Prob. 6CR Ch. 15 - Prob. 7CR Ch. 15 - Prob. 8CR Ch. 15 - Prob. 9CR Ch. 15 - Prob. 10CR Ch. 15 - (a) Name potential advantages of the...Ch. 15 - (a) What does a probability plot show? (b) If the...Ch. 15 - (a) Name two advantages of the Anderson-Darling...Ch. 15 - Prob. 19CE Ch. 15 - Prob. 20CE Ch. 15 - Prob. 21CE Ch. 15 - Prob. 22CE Ch. 15 - Prob. 23CE Ch. 15 - Prob. 24CE Ch. 15 - Instructions: In all exercises, include software...Ch. 15 - Prob. 26CE Ch. 15 - Prob. 27CE Ch. 15 - Prob. 28CE Ch. 15 - Prob. 29CE Ch. 15 - Prob. 30CE Ch. 15 - Prob. 31CE Ch. 15 - Prob. 32CE Ch. 15 - Prob. 33CE Ch. 15 - Prob. 34CE Ch. 15 - Prob. 35CE Ch. 15 - Prob. 36CE Ch. 15 - Prob. 37CE Ch. 15 - Prob. 38CE Ch. 15 - Instructions: In all exercises, include software...Ch. 15 - Prob. 40CE

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Solution Summary: The table summarizes the smoking by race for males and females.

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Chapter 15 Solutions