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Get Full Access to Elementary Statistics - 12 Edition - Chapter 13.3 - Problem 2 bsc
Get Full Access to Elementary Statistics - 12 Edition - Chapter 13.3 - Problem 2 bsc

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# Solved: Freshman 15For the matched pairs listed in ISBN: 9780321836960 18

## Solution for problem 2 BSC Chapter 13.3

Elementary Statistics | 12th Edition

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Problem 2 BSC

Problem 2BSC

Freshman 15For the matched pairs listed in Exercise,identify the following components used in the Wilcoxon signed-ranks test:

a.Differencesd

b.The ranks corresponding to the nonzero values of |d |

c.The signed ranks

d.The sum of the positive ranks and the sum of the absolute values of the negative ranks

e.The value ofT

f.The critical value ofT(assuming a 0.05 significance level in a test of no difference between September weights and April weights)

Exercise

Wilcoxon Signed-Ranks Test for Freshman 15The following table lists some of the weights from Data Set 4 in Appendix B. Those weights were measured from college students in September and later in April of their freshman year. Assume that we plan to use the Wilcoxon signed-ranks test to test the claim of no difference between September weights and April weights. What requirements must be satisfied for this test? Is there any requirement that the populations must have a normal distribution or any other specific distribution? In what sense is this Wilcoxon signed-ranks test a “distribution-free test”? Step-by-Step Solution:
Step 1 of 3

Solution 2BSC

The Interpretetion is as follows:

Here the P-value of 0.0023 is less than the Level of Significance of 0.05 so there is sufficient evidence to reject the Null Hypothesis and the claim of no difference.

Thus we conclude that the median is less than 98.6°F. Here we observe that different approaches to perform the sign test can lead to different results as indicated by the value of the test statistic given by -4.61, -4.29 , -2.82. But the conclusions come out to be the same in this case , there can be different conclusions in different cases observed.

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321836960

Since the solution to 2 BSC from 13.3 chapter was answered, more than 241 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 2 BSC from chapter: 13.3 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. Elementary Statistics was written by and is associated to the ISBN: 9780321836960. The answer to “Freshman 15For the matched pairs listed in Exercise,identify the following components used in the Wilcoxon signed-ranks test:a.Differencesdb.The ranks corresponding to the nonzero values of |d |c.The signed ranksd.The sum of the positive ranks and the sum of the absolute values of the negative rankse.The value ofTf.The critical value ofT(assuming a 0.05 significance level in a test of no difference between September weights and April weights)ExerciseWilcoxon Signed-Ranks Test for Freshman 15The following table lists some of the weights from Data Set 4 in Appendix B. Those weights were measured from college students in September and later in April of their freshman year. Assume that we plan to use the Wilcoxon signed-ranks test to test the claim of no difference between September weights and April weights. What requirements must be satisfied for this test? Is there any requirement that the populations must have a normal distribution or any other specific distribution? In what sense is this Wilcoxon signed-ranks test a “distribution-free test”?” is broken down into a number of easy to follow steps, and 160 words. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12. This full solution covers the following key subjects: test, ranks, weights, Signed, wilcoxon. This expansive textbook survival guide covers 121 chapters, and 3629 solutions.

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