Question

In: Statistics and Probability

1. If the test statistic (the calculated F ratio) is 10 and the error variance is...

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

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