In an ANOVA, one group has a much larger sample mean than the other. The analyst decides to remove this group and to conduct the analysis on the remaining groups only. Which of the following statements is correct?
Select one:
a. This analysis is good, as it allows the analyst now to investigate if there are differences in the means of the remaining groups.
b. This analysis is doubtful, as the assumptions of ANOVA may now not be satisfied.
c. This analysis is not correct, as now the estimate of variance will be based on fewer observations and this will not provide the best test.
d. This analysis is correct but we will no longer be able to compare the largest mean with the other means.