Use the Confidence Level and Sample Data to Find a Confidence

question 41

Multiple Choice

Use the confidence level and sample data to find a confidence interval for estimating the population µ.
-Test scores: $\mathrm { n } = 109 , \overline { \mathrm { x } } = 79.1 , \sigma = 6.9 ; 99$ percent

• A) \(77.4 < \mu < 80.8\)
• B) \(78.0 < \mu < 80.2\)
• C) \(77.8 < \mu < 80.4\)
• D) \(77.6 < \mu < 80.6\)

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