# Choosing between a Z and T test

Not what you're looking for? Search our solutions OR ask your own Custom question.

You are concerned about wait times at the cash registers in the supermarket. You collect data and have a sample size of 10, which test would you use a Z or a T test and why? What is the major difference between a Z and a T test. (hint sample size and variability)

Â© BrainMass Inc. brainmass.com December 24, 2021, 6:05 pm ad1c9bdddfhttps://brainmass.com/statistics/students-t-test/choosing-a-z-t-test-90655

#### Solution Preview

You are concerned about wait times at the cash registers in the supermarket. You collect data and have a sample size of 10, which test would you use a Z or a T test and why?

WE ...

#### Solution Summary

The solution explains how to choose between a Z and a T test.

$2.49