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A Test of Driving Ability Is Given to a Random

Question 90

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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.
 Before  After  Student  Class  Class  Difference 1100136−362121129−8393125−324146150−45101110−96109138−29714913613813013009127125210120129−9\begin{array}{cccc}&\text { Before } &\text { After } \\\text { Student }&\text { Class }&\text { Class }&\text { Difference }\\1 & 100 & 136 & -36 \\2 & 121 & 129 & -8 \\3 & 93 & 125 & -32 \\4 & 146 & 150 & -4 \\5 & 101 & 110 & -9 \\6 & 109 & 138 & -29 \\7 & 149 & 136 & 13 \\8 & 130 & 130 & 0 \\9 & 127 & 125 & 2 \\10 & 120 & 129 & -9\end{array}
Write the null and alternative hypotheses testing the claim that the test score is not affected by the course.

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Null hypothesis:μd =...

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