A student wanted to construct a 95% confidence interval for the mean age of students in her statistics class. She randomly selected nine students. Their average age was 19.1 years with a sample standard deviation of 1.5 years. What is the best point estimate for the population mean?
A)2.1 years
B)1.5 years
C)19.1 years
D)9 years

Question

Quizplus · Accepted Answer

The best point estimate for the population mean is the sample mean, which is 19.1 years.

A Student Wanted to Construct a 95% Confidence Interval for the Mean