Question: For some experiment, imagine four possible outcomes, as described in the following ANOVA table.

1. Source SS df MS F
   Between 900 3 300 3
   Within 8000 80 100
   Total 8900 83
2. Source SS df MS F
   Between 1500 3 500 5
   Within 8000 80 100
   Total 9500 83
3. Source SS df MS F
   Between 300 3 100 1
   Within 8000 80
   Total 8300 83
4. Source SS df MS F

Between 300 3 100 1

Within 400 4 100

700 7

1. How many groups are in Outcome D?
2. Assuming groups of equal size, what’s the size of each group in Out-come C?
3. Which outcome(s) would cause the null hypothesis to be rejected at the .05 level of significance?
4. Which outcome provides the least information about a possible treatment effect?
5. Which outcome would be the least likely to stimulate additional research?
6. Specify the approximate p -values for each of these outcomes.

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