Mathematics

Rebecca

9 March, 06:31

To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments. You are given the results below.

Treatment

Observation

A

20

30

25

33

B

22

26

20

28

C

40

30

28

22

1. The null hypothesis for this ANOVA problem is?

2. The mean square between treatments (MSTR) equals:

A. 1.872 B. 5.86 C. 34 D. 36

3. The mean square within treatments (MSE) equals:

A. 1.872 B. 5.86 C. 34 D. 36

4. The test statistic to test the null hypothesis equals:

A ...944 B. 1.059 C. 3.13 D. 19.231

5. The null hypothesis is to be tested at the 1% level of significance. The critical value from the table is

A. 4.26 B. 8.02 C. 16.69 D. 99.39