Three male and three female students recorded the number of times they used a credit card in

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Three male and three female students recorded the number of times they used a credit card in one week.

(a) Calculate s2pooled;
(b) Give an estimate of the common standard deviation for the wing size for the two species.
(c) Evaluate the t statistic for testing equality of the two population mean wing sizes.

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Statistics Principles And Methods

ISBN: 9780470904114

7th Edition

Authors: Richard A. Johnson, Gouri K. Bhattacharyya

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Question Posted: Apr 19, 2016 11:05 AM

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Three male and three female students recorded the number of times they used a credit card in

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Male 6 Female1 5 3

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a We first obtain Consequently the pooled varian...View the full answer

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