A researcher obtained a sample of 123 American women who said they wanted to lose weight. She weighed each of them and found M = 178 pounds. The mean weight for women in the United States is 164 pounds and the population standard deviation is known. The researcher used a single-sample z test and found z (N = 123) =
Chapter 6, Exercises #93
A researcher obtained a sample of 123 American women who said they wanted to lose weight. She weighed each of them and found M = 178 pounds. The mean weight for women in the United States is 164 pounds and the population standard deviation is known. The researcher used a single-sample z test and found z (N = 123) = 3.68, p < .05. Interpret her results to see if women who want to lose weight differ from the general population in terms of weight.
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A researcher compared the mean weight of American women who want to lose weight (178 p…View the full answer
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