Repeat the test you did in Exercise 15, but assume that the variances of purchase amounts are

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Repeat the test you did in Exercise 15, but assume that the variances of purchase amounts are the same at Target and Walmart. Did your conclusion change? Why do you think that is?

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Stats Data and Models

ISBN: 978-0321986498

4th edition

Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock

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Question Posted: Jan 20, 2016 06:10 AM

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Repeat the test you did in Exercise 15, but assume that the variances of purchase amounts are

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The tstatistic is 2561 using the pooled estimate of the standar...View the full answer

Stats Data and Models

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