Using the artofstat.com website, click on Web Apps, Permutation Test.You should be on the tab at the top of the screen that says "Data Entry and Descriptive Stats." Make sure that it is selected. We are going to enter the data to run a permutation test to see if there is a difference in the mean amount of time spent on emails per day between in state and out of state students.

First select "Enter Your Own Observations".

Under Name of Group 1 enter: In state Students

Under Name of Group 2 enter: Out of state students.

Under Name of Response Variable enter: time.

Enter the below data under the heading "Enter observations for each group, separated by spaces, or copy & paste from spreadsheet:"

Group 1: In state students: 2412224741221

Group 2: Out of state students: 12239112 5 2251

Make sure that the option "Select Test Statistic:" says "Difference of sample means".

The test statistic appears at the bottom of the screen.

What is the test statistic?

3

-1.13

0.3348

3.31