When 40 people used Weight Watchers for one year, their mean weight loss was 3.0 lbs and their standard deviation was 4.9 lbs. Use a 0.01 level of significance to test the claim that the mean weight loss is greater than 0 lbs. Based on your results, does the diet appear to be effective? Does it have practical significance?
When 40 people used Weight Watchers for one year, their mean weight loss was 3.0 lbs and their standard deviation was 4.9 lbs. Use a 0.01 level of significance to test the claim that the mean weight loss is greater than 0 lbs. Based on your results, does the diet appear to be effective? Does it have practical significance?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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