9.8 A random sample of n = 25 is obtained from a population with variance s2, and

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9.8 A random sample of n = 25 is obtained from a population with variance s2, and the sample mean is computed.

Test the null hypothesis H0 : m = 120 versus the alternative hypothesis H1 : m 7 120 with a = 0.10.

Compute the critical value xc and state your decision rule for the following options.

a. The population variance is s2 = 196.

b. The population variance is s2 = 625.

c. The population variance is s2 = 900.

d. The population variance is s2 = 500.

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Essential Mathematics And Statistics For Science

ISBN: 9780470694480

2nd Edition

Authors: Graham Currell, Dr. Antony Dowman

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Question Posted: Sep 23, 2024 08:01 AM

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9.8 A random sample of n = 25 is obtained from a population with variance s2, and

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Essential Mathematics And Statistics For Science

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