13th Edition

ISBN: 9780137695522

Author: Triola

Publisher: PEARSON C

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Chapter 13.3, Problem 8BSC

Using the Wilcoxon Signed-Ranks Test. In Exercises 5–8, refer to the sample data for the given exercises in Section 13-2 on page 611. Use the Wilcoxon signed-ranks test to test the claim that the matched pairs have differences that come from a population with a median equal to zero. Use a 0.05 significance level.

8. Exercise 8 “Speed Dating: Attractiveness”

Chapter 13.3, Problem 8BSC, Using the Wilcoxon Signed-Ranks Test. In Exercises 58, refer to the sample data for the given , example 1 8. Speed Dating: Attractiveness Repeat Exercise 6 using all of the attractiveness ratings in Data Set 18 “Speed Dating” in Appendix B.

6. Speed Dating: Attractiveness Listed below are ‘‘attractiveness” ratings (1 = not attractive; 10 = extremely attractive) made by couples participating in a speed dating session. The listed ratings are from Data Set 18 “Speed Dating”. Use a 0.05 significance level to test the claim that there is a difference between female attractiveness ratings and male attractiveness ratings.

Chapter 13.3, Problem 8BSC, Using the Wilcoxon Signed-Ranks Test. In Exercises 58, refer to the sample data for the given , example 2

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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Chapter 13.3, Problem 7BSC

Chapter 13.3, Problem 9BSC

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Chapter 13 Solutions

ELEMENTARY SATISTICS IA

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Solution Summary: The author analyzes the claim that there is a difference between female and male attractiveness ratings.

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