Find the 90% confidence interval for the difference between two means based on this information about two

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Find the 90% confidence interval for the difference between two means based on this information about two samples. Assume independent samples from normal populations.

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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 03:48 AM

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Find the 90% confidence interval for the difference between two means based on this information about two

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Std. Dev. Number 20 15 Mean 35 30 Sample

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