Use the Given Degree of Confidence and Sample Data to Construct

question 43

Multiple Choice

Use the given degree of confidence and sample data to construct a confidence interval for the population mean μ. Assume that the population has a normal distribution. Thirty randomly selected students took the calculus final. If the sample mean was 95 and the
standard deviation was $6.6$ , construct a $99 \%$ confidence interval for the mean score of all students.

• A) \(91.68<\mu<98.32\)
• B) \(91.69<\mu<98.31\)
• C) \(92.95 < \mu < 97.05\)
• D) \(92.03 < \mu < 97.97\)

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