In a single-factor ANOVA problem involving 3 treatments, the sample means were 5,6, and 9. If each observation in the third sample was increased by 20, the test statistic value f would
A) increase
B) decrease
C) remain the same
D) increase by 20
E) decrease by 10

Question

Quizplus · Accepted Answer

Increasing each observation in the third sample by 20 will increase the variance between the sample means, leading to an increase in the F statistic.

In a Single-Factor ANOVA Problem Involving 3 Treatments, the Sample