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Question: 1 Part A: There are several assumptions that are made in the one-way ANOVA model....

Question: 1 Part A:

There are several assumptions that are made in the one-way ANOVA model. Which one in the list is NOT one of the assumptions?

a. The populations means are all equal if Ho is true.

b. The variances within each treatment group are statistically equal.

c. The mean of the observations, in at least one treatment group, is statistically significantly different from the mean of the observations in any one of the other treatment groups.

d. All the observations in the study are independent of one another.

Part B: When analyzing mean differences among more than two samples, doing multiple t tests on all possible pairs of means

A. Decreases the probability of a Type I error

B. Does not change the probability of a Type I error

C. Cannot be determined from the information provided.

D. Increases the probability of Type I error
math   Statistics-And-Probability   
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Answer #1

A) option C: is correct

c. The mean of the observations, in at least one treatment group, is statistically significantly different from the mean of the observations in any one of the other treatment groups.

B)option D is correct

D. Increases the probability of Type I error
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