A researcher is interested to see if depression is different in those who use Facebook compared to those who do not. She knows the average depression score on the Beck Depression inventory for the general population is = 17, = 6. She collects a sample of 50 Facebook users and determines their average depression score is 21.

Which type of inferential test should she conduct?

options

Paired (related, dependent) Samples t-test

One sample z-test

One-sample t-test

Independent Samples t-test