Use the Given Degree of Confidence and Sample Data to Construct

question 116

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 75 and the standard deviation was 13.2, construct a 99% confidence interval for the mean score of all students.

• A) \(68.38 < \mu < 81.62\)
• B) \(70.91 < \mu < 79.09\)
• C) \(68.36 < \mu < 81.64\)
• D) \(69.07 < \mu < 80.93\)