You conduct a class project in which you divide classmates into seven pairs; each pair consists of a shy student and an outgoing student. You have each pair of students work on a puzzle but do not allow them to talk to each other. After completing the puzzle, you ask each student to indicate how much he or she enjoyed working on the puzzle:

a. Calculate the difference score (D) for each pair of students.

b. Calculate the mean (X̅_D), standard deviation (s_D̅), and standard error (s_D̅), of the difference scores.

Transcribed Image Text:

Pair Shy 1 8 Outgoing 4 2 4 6 3 00 8 2 4 6 6 5 3 7 6 6 3 7 5