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