Question: Consider the data with analysis shown in the following computer output: Level N Mean StDev A 5 9.900 2.958 B 5 16.800 2.168 C 5
Consider the data with analysis shown in the following computer output:
| Level | N | Mean | StDev |
A 5 9.900 2.958
B 5 16.800 2.168
C 5 10.800 2.387
| Source | DF | SS | MS | F | P |
|---|
| Groups | 2 | 140.70 | 70.35 | 11.03 | 0.002 |
|---|
Error 12 76.59 6.38
Total 14 217.29
What is the pooled standard deviation? What degrees of freedom are used in doing inferences for these means and differences in means?
The pooled standard deviation is?
degrees of freedom?
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