Author Question: When comparing more than two treatment means, should you use an analysis of variance rather than ... (Read 73 times)

DelorasTo · **on:** Jun 20, 2018

When comparing more than two treatment means, should you use an analysis of variance rather than using several t tests, and if so, why?

A) Yes. Using several t tests increases the risk of a Type I error.
B) Yes. Using several t tests increases the risk of a Type II error.
C) Yes. The analysis of variance is more likely to detect a treatment effect.
D) No. There is no advantage to using an analysis of variance rather than several t tests.

Question 2

A population has sum of squared deviations, SS = 100 and variance, s2 = 4. What is the value of S(X - m) for the population?

A) 0
B) 25
C) 100
D) 400