Education: Exams A high school science teacher decided to give a series of lectures on current events.

To determine if the lectures had any effect on student awareness of current events, an exam was given to the class before the lectures, and a similar exam was given after the lectures. The scores follow. Use a 0.05 level of significance to test the claim that the lectures made no difference against the claim that the lectures did make some difference (one way or the other).

Student 1 2 3 4 5 6 7 8 9 10 After Lectures 107 115 120 78 83 56 71 89 77 44 Before Lectures 111 110 93 75 88 56 75 73 83 40 Student 11 12 13 14 15 16 17 18 After Lectures 119 130 91 99 96 83 100 118 Before Lectures 115 101 110 90 98 76 100 109 please provide the following information.

(a) What is the level of significance? State the null and alternate hypotheses.

(b) Compute the sample test statistic. What is the sampling distribution?

(c) Find the P-value of the sample test statistic.

(d) Conclude the test.

(e) Interpret the conclusion in the context of the application.AppendixLO1