A physician who specializes in weight control has three different diets she recommends. As an experiment, she randomly selected 15 patients and then assigned 5 to each diet. After three weeks the following weight losses, in pounds, were noted. At the .05 significance level, can she conclude that there is a difference in the mean amount of weight loss among the three diets?
|
Plan A
|
Plan B
|
Plan C
|
|
5
|
6
|
7
|
|
7
|
7
|
8
|
|
4
|
7
|
9
|
|
5
|
5
|
8
|
|
4
|
6
|
9
|