13th Edition

ISBN: 9780134462455

Author: Mario F. Triola

Publisher: PEARSON

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Chapter 13.4, Problem 10BSC

Appendix B Data Sets. In Exercises 9–12, refer to the indicated data set in Appendix B and use the Wilcoxon rank-sum test.

10. Do Men Talk the Same Amount as Women Refer to Data Set 24 “Word Counts” in Appendix B and use the measured word counts from men in the third column and the measured word counts from women in the fourth column. Use a 0.01 significance level to test the claim that contrary to a popular myth, the median of the numbers of words spoken by men in a day is the same as the median of the numbers of words spoken by women in a day.

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 13.4, Problem 9BSC

Chapter 13.4, Problem 11BSC

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Chapter 13 Solutions

Elementary Statistics (13th Edition)

Ch. 13.2 - Prob. 1BSC Ch. 13.2 - Prob. 2BSC Ch. 13.2 - Contradicting H1 An important step in conducting...Ch. 13.2 - Efficiency of the Sign Test Refer to Table 13-2 on...Ch. 13.2 - Matched Pairs. In Exercises 58, use the sign test...Ch. 13.2 - Matched Pairs. In Exercises 58, use the sign test...Ch. 13.2 - Matched Pairs. In Exercises 58, use the sign test...Ch. 13.2 - Matched Pairs. In Exercises 58, use the sign test...Ch. 13.2 - Nominal Data. In Exercises 912, use the sign test...Ch. 13.2 - Nominal Data. In Exercises 912, use the sign test...

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Solution Summary: The author explains that there is no sufficient evidence to reject the claim that the median of the numbers of words spoken by men in a day is the same.

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