INTRO.STATISTICS,TECH.UPDT.-W/MYSTATLAB
10th Edition
ISBN: 9780135230008
Author: WEISS
Publisher: PEARSON
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Textbook Question
Chapter 10.6, Problem 204E
In Exercises 10.203–10.208, do the following.
- a. Apply the paired sign test to the specified exercise.
- b. Compare your result in part (a) to that obtained by using the paired Wilcoxon signed-rank test earlier in this exercise section. Pay particular attention to the P-values.
Note: If the paired-difference variable has a symmetric distribution, then ηd = μ1 − μ2.
10.204 Sleep. Exercise 10.188.
10.188 Sleep. In 1908, W.S. Cosset published “The Probable Error of a Mean” (Biometrika, Vol. 6, pp. 1-25). In this, pioneering paper, published under the pseudonym “Student,” he introduced what later became known as Student's t-distribution. Gosset used the following data set, which gives the additional sleep in hours obtained by 10 patients who used Iaevohysocyamine hydrobromide.
- a. At the 5% significance level, do the data provide sufficient evidence to conclude that laevohysocyamine hydrobromide is effective in increasing sleep?
- b. Repeat part (a) at the 1% significance level.
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Chapter 10 Solutions
INTRO.STATISTICS,TECH.UPDT.-W/MYSTATLAB
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