Information regarding the ACT scores of samples of students in three different
majors is given below.
Major
|
Management
|
Finance
|
Accounting
|
|
Sample size
|
12
|
9
|
12
|
|
Average
|
24
|
25
|
26
|
|
Sample variance
|
18
|
7
|
10
|
a. Compute the overall sample mean.
b. Set up the ANOVA table for this problem including the teststatistic.