1. Why would you not recommend the strategy of testing for equal variances, and if not significant, using the ANOVA F test rather than Welch's method.
2. Five independent groups are compared with n = 15 observations for each group. Fill in the missing values in the following summary table
|
Source of variation
|
Degree of freedom
|
Sum of squares
|
Mean square
|
F
|
|
Between groups
|
-
|
50
|
-
|
-
|
|
Within groups
|
-
|
150
|
-
|
|