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Construct the confidence interval for the population mean mu. cequals0.95​, x overbar equals 7.3​, sigmaequals 0.8​,...

Construct the confidence interval for the population mean mu. cequals0.95​, x overbar equals 7.3​, sigmaequals 0.8​, and nequals 58

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Answer #1

95% confidence interval for is

- Z * / sqrt(n) < < + Z * / sqrt(n)

7.3 - 1.96 * 0.8 / sqrt(58) < < 7.3 + 1.96 * 0.8 / sqrt(58)

7.094 < < 7.506

95% CI is ( 7.094 , 7.506 )

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