For each of the following sample results, construct the requested confidence interval. Assume the data come from

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For each of the following sample results, construct the requested confidence interval. Assume the data come from normally distributed populations.

a. n = 12, x̄ = 28.4, s2 = 44.9;99% confidence for σ2

b. n = 7, x̄ = 28.4, s = 1.24;95% confidence for σ2

c. n = 20, x̄ = 28.4, s = 32;90% confidence for σ2

d. n = 17, x̄ = 28.4, s2 = 18.56;80% confidence for σ2

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Business Statistics For Contemporary Decision Making

ISBN: 978-1118749647

8th edition

Authors: Black Ken

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Question Posted: Feb 19, 2015 08:58 AM

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For each of the following sample results, construct the requested confidence interval. Assume the data come from

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a n 12 284 s 2 449 99 CI df 12 1 11 c 2 99511 260320 c 2 00511 267569 b n 7 437 s ...View the full answer

Business Statistics For Contemporary Decision Making

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