The data below give the student to teacher ratio at

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Unformatted text preview: highest proportion of students meeting the state reading standards in the third grade and at the 10 schools with the lowest proportion of students meeting the state reading standards in the third grade. Ratios in the 10 Schools with Highest Proportion of Students Meeting Standards 7 21 18 22 9 16 12 17 17 16 20 19 Ratios in the 10 Schools with Lowest Proportion of Students Meeting Standards 14 16 18 20 12 14 16 12 (a) Display a dotplot for each group to compare the distribution of student-to-teacher ratios in the top 10 schools with the distribution in the bottom 10 schools. Comment on the similarities and differences between the two distributions. (b) Any statistical test that is used to determine whether the mean student-to-teacher ratio is the same for the top 10 schools as it is for the bottom 10 schools would be inappropriate. Explain why in a few sentences. © 2008 The College Board. All rights reserved. Visit apcentral.collegeboard.com (for AP professionals) and www.collegeboard.com/apstudents (fo...
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