Using a 95% confidence interval, estimate the mean difference in IQ between the oldest and the youngest

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Using a 95% confidence interval, estimate the mean difference in IQ between the oldest and the youngest members (brothers and sisters) of a family based on the following random sample of IQs.Assume normality.

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Elementary Statistics

ISBN: 9780538733502

11th Edition

Authors: Robert R. Johnson, Patricia J. Kuby

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Question Posted: Aug 28, 2015 03:43 AM

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Using a 95% confidence interval, estimate the mean difference in IQ between the oldest and the youngest

Question:

Oldest 145 133 116 128 85 100 105 150 97 110 120 130 Youngest 131 119 103 93 108 100 111 130 135 113 108 125

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