190 0400 0017 0373 4263 0400 13821 part 4

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Unformatted text preview: 24 67 59 19 21 10 All expected counts are greater than or equal to 5 (or 10), so it is OK to proceed with the chi-square test. Part 3: Correct mechanics. Chi-Sq = 0.667 0.017 1.190 DF = 5, P-Value + 0.667 + 0.373 + + 0.017 + 4.263 + + 1.190 + 0.400 + = 0.017 0.373 + 4.263 + 0.400 = 13.821 Part 4: States a correct conclusion in context using the result of the statistical test. Because the P-value < α (problem states α = .10), reject H0. There is convincing evidence that the distribution of number of lab classes is not the same in 2000 as it was in 1990. Copyright © 2002 by College Entrance Examination Board. All rights reserved. Advanced Placement Program and AP are registered trademarks of the College Entrance Examination Board. 20 AP® STATISTICS 2002 SCORING GUIDELINES (Form B) Question 6 (cont’d.) Part (c): Although the two distributions are centered in about the same place, the shape of the distributions is different. In 2000, the proportion of students taking three labs was smaller than in 1...
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