Use the Given Degree of Confidence and Sample Data to Construct

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) $92.03 < \mu < 97.97$

Correct Answer:

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