Question

1. Unrelated to the problems above, --If as a result of an ANOVA test of the difference between three different pain relievers, you cannot prove a difference for alpha=.05, what is the probability that you would reach this conclusion if , in fact, there was a difference?

Group of answer choices

a) .95

b) small if the sample size is small

C) alpha

D) small if the diets make a big difference

e) it depends on your p value

2. If as a result of an ANOVA test you reject the null hypothesis, you know

A) the means may all be the same

B) the means are all the same

C) all the means are different

D) a majority of the means are different from each other

E) at least one of the means differs from at least one other

3. You use ANOVA to see if people in different countries sleep a different number of hours on average. What is the probability you would find a difference if no difference existed?

A) alpha

B) 1- beta

C) beta

D) 1- alpha

E ) it depends on how much of a difference there really is

Answer 1