A sample of 20 paired observations generates the following data: d = 1.3 and sD2 = 2.6.

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A sample of 20 paired observations generates the following data: d̅ = 1.3 and sD2 = 2.6. Assume a normal distribution.

a. Construct a 90% confidence interval for the mean difference µD .

b. Using the confidence interval, test whether the mean difference differs from zero. Explain.

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Essentials Of Business Statistics Communicating With Numbers

ISBN: 9780078020544

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Authors: Sanjiv Jaggia, Alison Kelly

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Question Posted: Jan 28, 2015 08:59 AM

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A sample of 20 paired observations generates the following data: d = 1.3 and sD2 = 2.6.

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a With 1090 010 and df n1 201 19 t 2df t 00519 1729 d t ...View the full answer

Essentials Of Business Statistics Communicating With Numbers

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