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Author Question: Do popular diets really help customers in the long-run? Many diets help customers lose weight ... (Read 68 times)

darbym82

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Do popular diets really help customers in the long-run? Many diets help customers lose weight initially only to have the customer add the weight back on after the first few months on the diet. A commercially successful diet company conducted a study of twelve randomly selected customers and measured their weight after before starting the diet and then again after staying with the diet for a year. The company hoped that the initial weight loss would be sustained after the first year on the diet. The data is shown below:



Calculate the test statistic for the Wilcoxon Signed Rank Test to test to determine if the distribution of initial weight is shifted to the right of the distribution of one-year weight.
◦ T+ = 26
◦ T- = 19
◦ T+ = 78
◦ T+ = 59


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Marked as best answer by darbym82 on Feb 14, 2020

vickybb89

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darbym82

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Reply 2 on: Feb 14, 2020
Excellent


samiel-sayed

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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