Select the correct type of test to use for the following research design:

You want to compare the IQ of students at your university to the average IQ. You know that IQ follows a normal distribution and has a mean of 100 with a standard deviation of 15. You recruit 100 students to take an IQ test and calculate an average IQ for your university from this sample.

Group of answer choices

z test

single sample t-test

dependent means t-test

correlation