Question: 9) Many clinics offer weight-reduction programs. To test the effectiveness of one of these programs, ten people were weighed before starting the program and after

9) Many clinics offer weight-reduction programs. To test the effectiveness of one of these programs, ten people were weighed before starting the program and after following the program for one month. Data are presented below. (By the way, I am not real sure whether the program will lower or raise weight, but assume that the underlying population is normally distributed.)

Weight

Person Before After

1 132 125

2 231 220

3 128 109

4 165 172

5 133 130

6 149 140

7 260 271

8 141 134

9 188 180

10 193 179

This weight program requires using a Very Low Calorie Diet which could affect critical metabolic measures that would have to be monitored carefully. In order to ensure that the program is sufficiently effective to merit these risks, you select a 2-tailed alpha of .01 having a critical value of 3.250, what would your decision be?

a. tobt=(your value) < tcrit (your value); Retain Ho: The weight program is not effective.
b. tobt=(your value) > tcrit (your value); Reject Ho in support of H1: The weight program decreases weight.
c. tobt=(your value) > tcrit (your value); Reject Ho in support of H1: The weight program is effective.
d. tobt=(your value) < tcrit (your value); Retain Ho: The weight program is effective.

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