Construct a 95% Confidence Interval for the Population Mean, μ

question 68

Multiple Choice

Construct a 95% confidence interval for the population mean, μ. Assume the population has a normaldistribution. A sample of 25 randomly English majors has a mean test score of 81.5 with a standard deviation of10.2. Round to the nearest hundredth.

• A) (77.29, 85.71)
• B) (56.12, 78.34)
• C) (66.35, 69.89)
• D) (87.12, 98.32)

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