School administrators wondered whether class size and grade achievement (in percent) were related. A random sample of
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School administrators wondered whether class size and grade achievement (in percent) were related. A random sample of classes revealed the following data. Are the variables linearly related?
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No. of students 15 10 8 8 20 18 6 Avg. grade (%) 85 90 82 80 84 92
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x 77 y 513 x 2 1149 y 2 43969 xy 6495 n 6 r 0673 H 0 0 H ...View the full answer
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Related Book For
Elementary Statistics A Step By Step Approach
ISBN: 9781259755330
10th Edition
Authors: Allan G. Bluman
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