A company that sponsors LSAT prep courses would like to be able to claim that their courses improve scores by more than 3 percentage points. To te this, they take a sample of 8 people, have each take an initial diagnostic test, then take the prep course, and then take a post-test after the course. TH test results are below (scores are out of 100%): Person Initial Test Post-Test 1 68 66 72 73 3. 60 62 4. 76 81 73 79 6. 70 76 69 82 8. 68 68 Is there evidence, at an a = 0.065 level of significance, to conclude that the prep course improves scores by more than 3 percentage points? Carry c an appropriate hypothesis test, filling in the information requested. (Arrange your data so that the standardized test statistic is for the change from the initial test to the post-test.) A. What test method should be used? OA. Two Sample z OB. Matched Pairs C Two Sample t

A company that sponsors LSAT prep courses would like to be able to claim that their courses improve scores by more than 3 percentage points. To te this, they take a sample of 8 people, have each take an initial diagnostic test, then take the prep course, and then take a post-test after the course. TH test results are below (scores are out of 100%): Person Initial Test Post-Test 1 68 66 72 73 3. 60 62 4. 76 81 73 79 6. 70 76 69 82 8. 68 68 Is there evidence, at an a = 0.065 level of significance, to conclude that the prep course improves scores by more than 3 percentage points? Carry c an appropriate hypothesis test, filling in the information requested. (Arrange your data so that the standardized test statistic is for the change from the initial test to the post-test.) A. What test method should be used? OA. Two Sample z OB. Matched Pairs C Two Sample t

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 3E

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