# How do you construct a 90% confidence interval for the population mean, #mu#?

##
A sample of 15 randomly selected students has a grade point average of 2.86 with a standard deviation of 0.78. Assume the population has a normal distribution.

A sample of 15 randomly selected students has a grade point average of 2.86 with a standard deviation of 0.78. Assume the population has a normal distribution.

##### 1 Answer

Feb 22, 2018