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