Retention Test Scores A sample of non-English majors at a selected college was used in a study to see if the student retained more from reading a 19th-century novel or by watching it in DVD form. Each student was assigned one novel to read and a different one to watch, and then they were given a 20-point written quiz on each novel. The test results are shown below. At α=0.01, can it be concluded that the book scores are higher than the DVD scores? Assume the variables are normally distributed. Book 90 80 90 75 80 90 84 DVD 85 72 80 80 70 75 80 (a) State the hypotheses and identify the claim. H0: claim/ not claim H1: claim/not claim This hypothesis test is a one-tailed test. (b) Find the critical value(s). Round the answer(s) to at least three decimal places. If there is more than one critical value, separate them with commas. Critical value(s): (c) Compute the test value. Round the answer to at least three decimal places. t= (d) Make the decision. Reject/ do not reject the null hypothesis. (e) Summarize the results. There is/is not enough evidence to reject the null hypothesis that the book scores are equal to DVD scores.
Retention Test Scores A sample of non-English majors at a selected college was used in a study to see if the student retained more from reading a 19th-century novel or by watching it in DVD form. Each student was assigned one novel to read and a different one to watch, and then they were given a 20-point written quiz on each novel. The test results are shown below. At α=0.01, can it be concluded that the book scores are higher than the DVD scores? Assume the variables are
Book 90 80 90 75 80 90 84
DVD 85 72 80 80 70 75 80
(a) State the hypotheses and identify the claim.
H0: claim/ not claim
H1: claim/not claim
This hypothesis test is a one-tailed test.
(b) Find the critical value(s). Round the answer(s) to at least three decimal places. If there is more than one critical value, separate them with commas.
Critical value(s):
(c) Compute the test value. Round the answer to at least three decimal places.
t=
(d) Make the decision.
Reject/ do not reject the null hypothesis.
(e) Summarize the results.
There is/is not enough evidence to reject the null hypothesis that the book scores are equal to DVD scores.
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