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university of southern california Operations And Supply Chain Management Assignment Help - Derivatives-A random


Question - Below you are given ages that were obtained by taking a random sample of 9 undergraduate
students. Assume the population has a normal distribution.
40 42 43 39 37 39
a. What is the point estimate of m?
b. Determine the standard deviation.
c. Construct a 90% confidence interval for the average age of undergraduate students.
d. Construct a 99% confidence interval for the average age of undergraduate students.
e. Discuss why the 99% and 90% confidence intervals are different.

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