Short Answer
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 t statistic to test that there is no difference between the before-class scores and the after-class scores.
Correct Answer:

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−2.21
t = mean difference/(std...View Answer
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Correct Answer:
Verified
t = mean difference/(std...
View Answer
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