Question

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 for the six students respectively are: (83, 89, 93, 77, 86 and 79) are scores before the course, while (87, 88, 91, 77, 93, and 83) are scores after the course. The value of the test statistic to be used is

Answer 1

Assume that a simple random sample has been selected and test the given claim. Unless specified

by your instructor, use either the P-value method or the critical value method for testing hypotheses. Identify the null and alternative hypotheses, test statistic, P-value (or range of P-values), or critical value(s), and state the final conclusion that addresses the original claim. Data Set 17 "Course Evaluations" in Appendix includes data from student evaluations of courses. The summary statistics are n= 93, x = 3.93, s= 0.53. Use a 0.05 significance level to test the claim that the population of student course evaluations has a mean equal to 4.00.

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