A weight loss product claims that, after a week of using the…
Questions
A weight lоss prоduct clаims thаt, аfter a week оf using their product, a person's weight will go down by more 4 pounds. To test this claim, 5 people are randomly selected who use the weight loss product for a week. Before and after weights are shown in the table below. Use this data to answer the following questions and to test the claim. Assume alpha=0.05. Before 155 189 142 245 288 After 150 183 137 239 282 What is the mean of the difference in weight (d-bar)? [dbar] (round to 1 decimal)What is the standard deviation of the difference in weight (s-d)? [sd] (round to 2 decimals)What is the left critical value? [cvL] (round to 2 decimals - enter "na" if there is none)What is the right critical value? [cvR] (round to 2 decimals - enter "na" if there is none)What is the value of the test statistic? [ts] (round to 2 decimals)What is the result of the hypothesis test? [result] (enter "reject H0" or "fail to reject H0")Is the claim supported? [support] (enter "yes" or "no")
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