Imagine a researcher asks a sample of five people to drive two types of cars and rate each of them on a 1 to 20 scale. Listed below are the data she collected:

a. Calculate the difference score \((D)\) for each of the five participants.

b. Calculate the mean \(\left(\bar{X}_{D}\right)\), standard deviation \(\left(s_{\bar{D}}\right)\), and standard error \(\left(s_{\bar{D}}\right)\) of the difference scores.

Transcribed Image Text:

Person Type A Type B 1 20 10 2 10 11 3 11 4 4 23 12 5 7 0