Question
Consider the data with analysis shown in the following computer output: Level N Mean StDev A 6 87.142 5.576 B 5 76.167 6.555 C 6
Consider the data with analysis shown in the following computer output:
| Level | N | Mean | StDev |
|---|---|---|---|
| A | 6 | 87.142 | 5.576 |
| B | 5 | 76.167 | 6.555 |
| C | 6 | 80.000 | 9.230 |
| D | 7 | 69.333 | 6.154 |
| Source | DF | SS | MS | F | P |
|---|---|---|---|---|---|
| Groups | 3 | 1069.65 | 356.55 | 7.27 | 0.002 |
| Error | 20 | 980.53 | 49.03 | ||
| Total | 23 | 2050.18 |
What is the pooled standard deviation? What degrees of freedom are used in doing inferences for these means and differences in means? Round your answer for the pooled standard deviation to two decimal places. The pooled standard deviation is _____ degrees of freedom =
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Finite Math And Applied Calculus
Authors: Stefan Waner, Steven Costenoble
6th Edition
1285415132, 9781285415130
