A diet center claims that people subscribing to its program lose an average of 4 lb in
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A diet center claims that people subscribing to its program lose an average of 4 lb in the first week of the diet. Suppose 25 people in the diet center’s program are chosen at random and are found to have lost 4.3 lb in the first week with a sample standard deviation of 1.1 lb. Test, at the 5 % level of significance, the hypothesis that the mean weight loss is 4 lb.
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Related Book For
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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