Author Question: An analysis of variance is used to evaluate the mean differences for a research study comparing four ... (Read 171 times)

Metfan725 · **on:** Jun 20, 2018

An analysis of variance is used to evaluate the mean differences for a research study comparing four treatments with a separate sample of n = 8 in each treatment. If the data produce an F-ratio of F = 5.50, then which statistical decision is correct?

A) Reject the null hypothesis with = .05 but not with = .01.
B) Reject the null hypothesis with either = .05 or = .01.
C) Fail to reject the null hypothesis with either = .05 or = .01.
D) There is not enough information to make a statistical decision.

Question 2

Given a population with mean m = 60, which of the following values for the population standard deviation would cause X = 68 to have the most extreme position in the distribution?

A) = 2
B) = 3
C) = 5
D) = 12