A random sample of 175 measurements possessed a mean of x = 8.2 and a standard deviation

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A random sample of 175 measurements possessed a mean of x = 8.2 and a standard deviation of s = .79.

a. Form a 95% confidence interval for m.

b. Test H0:µ= 8.3 against Ha: µ ≠ 8.3. Use α = .05.

c. Test H0:µ= 8.4 against Ha: µ ≠ 8.4. Use α = .05.

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Statistics

ISBN: 9780321755933

12th Edition

Authors: James T. McClave, Terry T Sincich

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Question Posted: May 20, 2015 05:43 AM

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A random sample of 175 measurements possessed a mean of x = 8.2 and a standard deviation

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a For confidence coefficient 95 05 and 2 05 2 025 From Table IV Appendix A z 025 196 The c...View the full answer

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