In the study discussed in Exercise 18.10, the authors also ran a control group under the same conditions, but without the BST intervention. Those data (for males) follow.

Follow-up Follow-up Pretest Posttest 6 Months 12 Months 00 00 00 00 69 56 14 36 05 00 00 05 04 24 00 00 35 08 00 00 07 00 09 37 51 53 08 26 25 00 00 15 59 45 11 16 40 02 33 16

(a) Calculate the means for these data and plot them on the same graph used in Exercise 18.9.

(b) Run the analysis of variance on these data.