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The developers of a weight-loss program would like to test the hypothesis that the standard deviation for the weight loss, in pounds, over a one-month

The developers of a weight-loss program would like to test the hypothesis that the standard deviation for the weight loss, in pounds, over a one-month period is equal to 3.0 pounds. The following table shows the one-month weight loss, in pounds, of seven individuals who participated in a weight-loss program.

10

13

11

9

4

20

3

Test the hypothesis using = 0.10.

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