A randomly selected group of 30 boys of junior high-school age and an in dependent group of

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A randomly selected group of 30 boys of junior high-school age and an in¬

dependent group of 30 senior high-school boys were each given the same test of mechanical ability. The results were as follows:

Junior High Senior High Ni = 30 N2 = 30 Mi = 168 M2 = 173 Si = 39 s2 = 33 At the .01 level of significance, can we say that the two groups are significantly different in variability?

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Statistics Probability Inference And Decision

ISBN: 9780030778056

1st Edition

Authors: Robert L. Winkler, William L. Hays

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Question Posted: Sep 21, 2024 10:01 AM

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A randomly selected group of 30 boys of junior high-school age and an in dependent group of

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Statistics Probability Inference And Decision

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