Question

A diet center claims that it has the most effective weight loss program in the region. Its advertisements say, ‘Participants in our program lose weight within two weeks.’ Six clients of this program are weighed on the first day of the diet and then two weeks later. Assume weight losses of participants in the program are approximately normally distributed. Client Weight on First Day of Diet Weight Two Weeks Later 1 197 204 2 187 184 3 243 227 4 188 186 5 171 142 6 238 229 Let ?D denote the average difference between the weight before the diet and two weeks after starting the diet. In this case, a positive ?D denotes that a person on average loses weight while on the diet.

          A diet center claims that it has the most effective weight loss program in the region. Its advertisements say, ‘Participants in our
program lose weight within two weeks.’ Six clients of this program are weighed on the first day of the diet and then two weeks later.
Assume weight losses of participants in the program are approximately normally distributed.

Client
Weight on First Day of Diet
Weight Two Weeks Later
1 197 204
2 187 184
3 243 227
4 188 186
5 171 142
6 238 229

Let ?D denote the average difference between the weight before the diet and two weeks after starting the diet. In this case, a positive ?D denotes that a person on average loses weight while on the diet.

A diet center claims that it has the most effective weight loss program in the region. Its advertisements say, ‘Participants in our
program lose weight within two weeks.’ Six clients of this program are weighed on the first day of the diet and then two weeks later.
Assume weight losses of participants in the program are approximately normally distributed.

Client
Weight on First Day of Diet
Weight Two Weeks Later
1 197 204
2 187 184
3 243 227
4 188 186
5 171 142
6 238 229

Let ?D denote the average difference between the weight before the diet and two weeks after starting the diet. In this case, a positive ?D denotes that a person on average loses weight while on the diet.

Added by Michael G.

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