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Hypothesis Testing (Two samples – means) 7. After four weeks in the program, Weight Watchers wants...

Hypothesis Testing (Two samples – means) 7. After four weeks in the program, Weight Watchers wants to know if there is a difference between the weight loss in men as opposed to the weight loss in women. After four weeks, a sample of 40 men revealed a mean weight loss of 17.6 pounds while a sample of 55 women revealed a mean weight loss of 13.8 pounds. The standard deviation of weight loss in men and women is 5.8 pounds and 4.0 pounds respectively. At the 0.01 significance level, in the first four weeks, is there a difference between the weight loss in men as opposed to the weight loss in women? Use the five step process!

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