The following data are from a repeated-measures study examining the effect of a treatment by measuring a group of n = 9 participants before and after they receive the treatment.

a. Calculate the difference scores and M_D.

b. Compute SS, sample variance, and estimated standard error.

c. Is there a significant treatment effect? Use α = .05, two tails.

Transcribed Image Text:

Participant A B с D E F G H I Before Treatment 82 64 76 6 38 150 10 4 16 After Treatment 89 67 79 8 40 147 14 11 18