Question

In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. Does the weight loss program have practical significance?

A.

Yes, because the weight loss program worked and the subjects lost a mean of 3.0 lb.
B.

No, because the mean weight loss of 3.0 lb after one year does not seem to justify the program.
C.

No, because the sample of 40 subjects was too small to determine if the program was useful.
D.

Yes, because the mean weight loss of 3.0 lb after one year does seems to justify the program.

3 of 10

Answer 1

B.

Answer 2

Why's that? @wrstlr3232

Answer 3

a mean weight loss of 3.0 lbs over 1 year is not large enough to justify the program

Answer 4

Thanks so much @wrstlr3232 can you help me with 1 more pls
In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. Does the weight loss program have statistical significance?

A.

Yes, because the mean loss of 3.0 lb after one year seems to justify the program.
B.

No, because the mean loss of 3.0 lb after one year does not seem to justify the program.
C.

No, because the sample of 40 subjects was too small to determine if the program is useful.
D.

Yes, because the subjects had a mean loss of 3.0 lb, so the program was effective.