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A Test of Driving Ability Is Given to a Random

Question 63

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A test of driving ability is given to a random sample of 10 student drivers before and after they complete a formal driver education course. Results follow.
A test of driving ability is given to a random sample of 10 student drivers before and after they complete a formal driver education course. Results follow. Calculate the mean difference between the before-class scores and the after-class scores. Calculate the mean difference between the before-class scores and the after-class scores.

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Mean difference = −1...

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