Churn propensity scores are applied to accounts at a cellular phone company. Ranging from 0 to 100, an account scoring 50 or above may be looking to change providers. A manager with 50 customers above the threshold randomly samples 200 below it, wanting to compare them on average minutes used per month.

This example uses the file cellular.sav. Use Independent-Samples T Test to determine whether these groups have different levels of cell-phone usage.