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Get Full Access to Statistics: Informed Decisions Using Data - 5 Edition - Chapter 7.3 - Problem 3
Get Full Access to Statistics: Informed Decisions Using Data - 5 Edition - Chapter 7.3 - Problem 3

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# ?In Problems 3–6, use the results in the table to (a) draw a normal probability plot, (b) determine the linear correlation between the observed values

ISBN: 9780134133539 240

## Solution for problem 3 Chapter 7.3

Statistics: Informed Decisions Using Data | 5th Edition

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Problem 3

In Problems 3–6, use the results in the table to (a) draw a normal probability plot, (b) determine the linear correlation between the observed values and expected z-scores, (c) determine the critical value in Table VI to assess the normality of the data.

Step-by-Step Solution:

Step 1 of 5) Use the results in the table to (a) draw a normal probability plot, (b) determine the linear correlation between the observed values and expected z-scores, (c) determine the critical value in Table VI to assess the normality of the data. Step 4 Because we are performing a right-tailed test and the sample size is less than 30, we find the critical value with n = 14 at the a = 0.05 level of significance by using Table XIII and obtain T0.05 = 25. See Figure 7. Because the test statistic, T = 36, is greater than the critical value, T0.05 = 25, we do not reject the null hypothesis. Step 4 Because the P-value is greater than the level of significance 10.158 7 0.052, we do not reject the null hypothesis. Step 5 There is not sufficient evidence to conclude the median daily volume of Walgreens stock is greater than that of McDonald’s at the a = 0.05 level of significance. Using the Wilcoxon Signed-Ranks Test on a Single Sample The Wilcoxon matched-pairs signed-ranks test can also be used as a single sample test for the median of a population, provided that the population is symmetric.

Step 2 of 2

##### ISBN: 9780134133539

This full solution covers the following key subjects: . This expansive textbook survival guide covers 88 chapters, and 2422 solutions. Since the solution to 3 from 7.3 chapter was answered, more than 212 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 3 from chapter: 7.3 was answered by , our top Statistics solution expert on 01/15/18, 03:19PM. This textbook survival guide was created for the textbook: Statistics: Informed Decisions Using Data, edition: 5. The answer to “?In 3–6, use the results in the table to (a) draw a normal probability plot, (b) determine the linear correlation between the observed values and expected z-scores, (c) determine the critical value in Table VI to assess the normality of the data.” is broken down into a number of easy to follow steps, and 42 words. Statistics: Informed Decisions Using Data was written by and is associated to the ISBN: 9780134133539.

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