Question: Chapter 8, Section 2, Exercise 042 Consider the data with analysis shown in the following computer output: Level N Mean StDev A 5 10.400 3.026

Chapter 8, Section 2, Exercise 042

Consider the data with analysis shown in the following computer output:

Level N Mean StDev

A 5 10.400 3.026

B 5 16.800 2.168

C 5 10.800 2.387

Source DF SS MS F P

Groups 2 128.53 64.27 9.86 0.003

Error 12 78.22 6.52

Total 14 206.75

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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