9.48 Better Sleep? Sleep habits of men and women may differ. We can improve the completely randomized design of Exercise 9.47 by using women and men as blocks. Your 300 subjects include 120 women and 180 men. Outline a block 20% Page 1180 of 6452 -Location 1 C F1 F2 F3 X F4 F5 F6 F7 @ S % &Q Search design for comparing the effect on sleep of whether or not you have a glass of wine and whether or not you have a snack before going to bed. Be sure to say how many subjects you will put in each group in your design