In: Statistics and Probability
1. If the test statistic (the calculated F ratio) is 10 and the error variance is 5, what is the treatment variance?
2. If the treatment Sum of Squares is 400, and k=5, what is the treatment variance?
3. What is the table value for F(11,46) when alpha = .05?
4. What is the lowest possible value for the F statistic?
5. The following table shows the results of an analysis of variance comparing three treatment conditions with a sample of n = 7 participants in each treatment. Note that several values are missing in the table. What is the status of the null hypothesis?
Source SS df MS
Treatment 20 2 xx F = 5 p = xx
Error 36 18 2
Total xx xx
What is the status from these choices below?
a) reject at .05; fail to reject at .01
b) reject at either .05 or .01
c) fail to reject at .05 or .01
d) fail to reject at .05; reject at .01