All employees in a firm have recently received professional

All employees in a firm have recently received professional development training that is designed to improve their productivity. A manager wants to know whether or not the training has been effective by comparing employee productivity data before and after the training.

decide which of the following four methods is appropriate.

One sample t test

Paired samples t test

Independent samples t test

One-way analysis of variance (ANOVA)

Solution

Paired sample t test