A Test of Driving Ability Is Given to a Random

question 90

Essay

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

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Definitions:

Insulation Job

A service or project involving the application of insulating materials to buildings or structures to reduce energy consumption by maintaining temperature.

Annual Fuel Bill

The total cost incurred by an individual or organization for fuel over the course of a year.

Interest Rate

The cost of borrowing money, typically expressed as a percentage of the amount borrowed, or the return on investment for savings.

Interest Rate

The portion of a loan subject to interest for the borrower, frequently shown as an annual percentage of the outstanding sum of the loan.