14. [0.8/1 Points] DETAILS PREVIOUS ANSWERS MENDSTAT15 3.2.024.5. MY NOTES ASK YOUR TEACHE Seven special needs students were studied to determine whether a social skills program caused improvement in pre/post measures and behavior ratings. For one such test, these are the pretest and posttest scores for the seven students. Student Pretest (x) Posttest (y) Evan 100 114 Riley 90 90 Jamie 113 120 Charlie 106 100 Jordan 91 103 Susie 90 93 Lori 90 100 LO USE SALT (a) Draw a scatterplot relating the posttest score to the pretest score. 115 115 . 120 120 110 110 110 105 105 110 100 100 100 100 95 95 90 30 90 90 95 100 105 C 110 115 90 95 100 105 110 90 100 110 120 90 100 110 120 Do you see any trend? O There is a strong negative trend between pretest and posttest scores. O There is a slight negative trend between pretest and posttest scores. O There is a strong positive trend between pretest and posttest scores. There is a slight positive trend between pretest and posttest scores. (b) Calculate the correlation coefficient. (Round your answer to four decimal places.) F = 0.8254 x