Use the Following Information for Questions:
on a Survey Conducted $µ_1$

Multiple Choice

Use the following information for questions:
On a survey conducted at a university, students were asked how they felt about their weight (about right, overweight, or underweight) , and also were asked to record their grade point average (GPA) . There were 234 responses, with 160 saying their weight was about right, 50 said they were overweight, and 17 underweight. The question of interest is whether mean GPA is the same or differs for different weight attitude populations. Minitab output for the study is given below.

-If $µ_1$ , $µ_2$ and $µ_3$ are the population means of GPA for the about right, overweight and underweight groups, respectively, then the alternative hypotheses tested by this analysis is:

A) $µ_1$ , $µ_2$ and $µ_3$ are all different.
B) At least two of $µ_1$ , $µ_2$ and $µ_3$ are different from each other.
C) $µ_1$ = $µ_2$ ? $µ_3$
D) $µ_1$ > $µ_2$ > $µ_3$