A random sample of 51 observations from a normal population possessed a mean of x = 88

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A random sample of 51 observations from a normal population possessed a mean of x = 88 and a standard deviation of s = 6.9.

a. Test H0: s2

= 20 against Ha: s2 7 20. Use a = .05.

b. Test H0: s2

= 20 against Ha: s2 20. Use a = .05.

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Statistics Plus New Mylab Statistics With Pearson Etext Access Card Package

ISBN: 978-0134090436

13th Edition

Authors: James Mcclave ,Terry Sincich

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Question Posted: Jul 19, 2024 06:05 PM

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A random sample of 51 observations from a normal population possessed a mean of x = 88

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Statistics Plus New Mylab Statistics With Pearson Etext Access Card Package

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