Debbie is making bows that use 1 2 yard of ribbon each. If Debbie has 5 yards of ribbon, how many bows can she make? Choose the division expression and multiplication expression that can be used to solve this problem. A 5 dotmath 1 2 B 5 ÷ 1 2 C 5 dotmath 2 D 5 ÷ 2 Debbie can make bows.

Consider the linear model for a two-stage nested design with b nested in a as given below. yijk=\small \mu + \small \taui + \small \betaj(i) + \small \varepsilon(ij)k , for i=1,; j= ; k=1, assumption: \small \varepsilon(ij)k ~ iid n (0, \small \sigma2) ; \small \taui ~ iid n(0, \small \sigmat2 ); \tiny \sum_{j=1}^{b} \small \betaj(i) =0; \small \varepsilon(ij)k and \small \taui are independent. using only the given information, derive the least square estimator of \small \betaj(i) using the appropriate constraints (sum to zero constraints) and derive e(msb(a) ).