In order to determine whether or not a driver's education course improves the scores on a driving exam, a sample of 6 students were given the exam before and after taking the course. The results are shown below. Let d = Score After - Score Before. Student Score Before the CourseScore After the Course1 83872 89883 93914 77775 86936 7983 Use = 0.1 and test to see if taking the course actually increased scores on the driving exam. The value of the test statistic is found to be equal to 1.3912. What is(are) the critical values of the test statistic? Question 19Select one: A. 1.476 B. -1.28 C. -1.476 D. -1.28 to 1.28

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