ce Assignment Gradebook ent Chapter 8, Section 2, Exercise 034 Consider the data

Question

ce Assignment Gradebook ent Chapter 8, Section 2, Exercise 034 Consider the data with analysis shown in the following computer output: Mean tDev 5 10.100 2.706 5 16.800 2.168 5 10.800 2.387 Level Source DF SS MS 2 145.19 72.59 10.74 0.002 Groups Error12 81.10 6.76 14 226.28 Total 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. ne A Rghts Reserved. A

Explanation / Answer

The square root of the residual Mean Square is the pooled SD

Here Residual Mean square = 6.76

So Pooled Standard deviation = sqrt (6.76) = 2.60

Degrees of Freedom = 12

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