1) Based on the table I posted, what is D-bar (the mean difference score)? Give your answer to 3 decimal places

2) Based on the table I posted, solve for the variance of the difference scores. Round to three decimal places

3) Solve for the estimated standard error of the mean difference:

4) Based on the table, solve for t-obtained

5) Is the value of t-obtained in the critical region?

6) Report the statistical results in A P A style

Participant After Before D D - D (D - D)2 12 7 5.0 3.5 12.25 2 11 3.0 1.5 2.25 2 5.0 3.5 12.25 -3.0 -4.5 20.25 -1.0 -2.5 6.25 0.0 -1.5 2.25 40 4 00 01 00 W -1.0 -2.5 6.25 3.0 1.5 2.25 2.0 0.5 0.25 10 2.0 0.5 0.25 n = 10 [D -15 [(D -D)2 = 64.5 D = ED = 1.5 n