Statistics
4th Edition
ISBN: 9780393929720
Author: David Freedman, Robert Pisani, Roger Purves
Publisher: Norton, W. W. & Company, Inc.
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Question
Chapter 29.2, Problem 7EB
To determine
Identify whether the one-tailed or a two-tailed z-test is more appropriate.
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Business discuss
Business discuss
I just need to know why this is wrong below:
What is the test statistic W? W=5 (incorrect)
and
What is the p-value of this test? (p-value < 0.001-- incorrect)
Use the Wilcoxon signed rank test to test the hypothesis that the median number of pages in the statistics books in the library from which the sample was taken is 400. A sample of 12 statistics books have the following numbers of pages
pages
127
217
486
132
397
297
396
327
292
256
358
272
What is the sum of the negative ranks (W-)? 75 What is the sum of the positive ranks (W+)? 5What type of test is this? two tailedWhat is the test statistic W? 5 These are the critical values for a 1-tailed Wilcoxon Signed Rank test for n=12
Alpha Level
0.001
0.005
0.01
0.025
0.05
0.1
0.2
Critical Value
75
70
68
64
60
56
50
What is the p-value for this test? p-value < 0.001
Chapter 29 Solutions
Statistics
Ch. 29.1 - Prob. 1EACh. 29.1 - Prob. 2EACh. 29.2 - Prob. 1EBCh. 29.2 - Prob. 2EBCh. 29.2 - Prob. 3EBCh. 29.2 - Prob. 4EBCh. 29.2 - Prob. 5EBCh. 29.2 - Prob. 6EBCh. 29.2 - Prob. 7EBCh. 29.2 - Prob. 8EB
Ch. 29.2 - Prob. 9EBCh. 29.3 - Prob. 1ECCh. 29.3 - Prob. 2ECCh. 29.3 - Prob. 3ECCh. 29.3 - Prob. 4ECCh. 29.3 - Prob. 5ECCh. 29.3 - Prob. 6ECCh. 29.3 - Prob. 7ECCh. 29.3 - Prob. 8ECCh. 29.4 - Prob. 1EDCh. 29.4 - Prob. 2EDCh. 29.4 - Prob. 3EDCh. 29.4 - Prob. 4EDCh. 29.4 - Prob. 5EDCh. 29.4 - Prob. 6EDCh. 29.5 - Prob. 1EECh. 29.5 - Prob. 2EECh. 29.5 - Prob. 3EECh. 29.5 - Prob. 4EECh. 29.7 - Prob. 1RECh. 29.7 - Prob. 2RECh. 29.7 - Prob. 3RECh. 29.7 - Prob. 4RECh. 29.7 - Prob. 5RECh. 29.7 - Prob. 6RECh. 29.7 - Prob. 7RECh. 29.7 - Prob. 8RECh. 29.7 - Prob. 9RECh. 29.7 - Prob. 10RECh. 29.7 - Prob. 11RECh. 29.7 - Prob. 12RECh. 29.8 - Prob. 1SRECh. 29.8 - Prob. 2SRECh. 29.8 - Prob. 3SRECh. 29.8 - Prob. 4SRECh. 29.8 - Prob. 5SRECh. 29.8 - Prob. 6SRECh. 29.8 - Prob. 7SRECh. 29.8 - Prob. 8SRECh. 29.8 - Prob. 9SRECh. 29.8 - Prob. 10SRECh. 29.8 - Prob. 11SRECh. 29.8 - Prob. 12SRECh. 29.8 - Prob. 13SRECh. 29.8 - Prob. 14SRECh. 29.8 - Prob. 15SRECh. 29.8 - Prob. 16SRECh. 29.8 - Prob. 17SRECh. 29.8 - Prob. 18SRECh. 29.8 - Prob. 19SRECh. 29.8 - Prob. 20SRECh. 29.8 - Prob. 21SRECh. 29.8 - Prob. 22SRECh. 29.8 - Prob. 23SRECh. 29.8 - Prob. 24SRECh. 29.8 - Prob. 25SRECh. 29.8 - Prob. 26SRECh. 29.8 - Prob. 27SRECh. 29.8 - Prob. 28SRECh. 29.8 - Prob. 29SRECh. 29.8 - Prob. 30SRECh. 29.8 - Prob. 31SRECh. 29.8 - Prob. 32SRECh. 29.8 - Prob. 33SRECh. 29.8 - Prob. 34SRECh. 29.8 - Prob. 35SRECh. 29.8 - Prob. 36SRECh. 29.8 - Prob. 37SRECh. 29.8 - Prob. 38SRECh. 29.8 - Prob. 39SRECh. 29.8 - Prob. 40SRE
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