Problem

A random sample of 175 measurements possessed a mean of and a standard deviation of s =.7...

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

a. Form a 95% confidence interval for μ.
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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Solutions For Problems in Chapter 6

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