For questions 27 through 30,use the following table: Historical Returns Year Toys'R'Me S.A.O.Rouge 15% 13% 2 20% 17% 3 5% -7% 4 12% 8% 10% 6% 27.What are the mean returns for Toys'R'Me and S.A.O.Rouge,respectively? (a)Toys R Me:12.4%;S.A.O.Rouge:10.2% (b)Toys R Me:10.4%;S.A.O.Rouge:7.4% (c)Toys R Me:10.4%;S.A.O.Rouge:10.2% (d)Toys R Me:7.4%;S.A.O.Rouge:10.4% Answer:(b) 28.What is the standard deviation of returns for Toys R Me?For S.A.O.Rouge? (a)Toys R Me:8.4%;S.A.O.Rouge:7.4% (b)Toys R Me:8.40%;S.A.O.Rouge:8.16% (c)Toys R Me:10.4%;S.A.O.Rouge:7.4% (d)Toys R Me:10.4%;S.A.O.Rouge:8.16% Answer:(b) 29.Suppose the returns for Toys R Me and S.A.O.Rouge are normally distributed.Determine the 0.68 confidence interval for Toys R.Me. (a)(8.4%,10.4%) (b)(-14.8%,35.6%) (c)(-6.4%,27.2%) (d(2.00%,18.80%) Answer:(d) 10-810-8 For questions 27 through 30, use the following table: Historical Returns Year Toys’R’Me S.A.O. Rouge 1 2 3 4 5 15% 20% -5% 12% 10% 13% 17% -7% 8% 6% 27. What are the mean returns for Toys’R’Me and S.A.O. Rouge, respectively? (a) Toys R Me: 12.4%; S.A.O. Rouge: 10.2% (b) Toys R Me: 10.4%; S.A.O. Rouge: 7.4% (c) Toys R Me: 10.4%; S.A.O. Rouge: 10.2% (d) Toys R Me: 7.4%; S.A.O. Rouge: 10.4% Answer: (b) 28. What is the standard deviation of returns for Toys R Me? For S.A.O. Rouge? (a) Toys R Me: 8.4%; S.A.O. Rouge: 7.4% (b) Toys R Me: 8.40%; S.A.O. Rouge: 8.16% (c) Toys R Me: 10.4%; S.A.O. Rouge: 7.4% (d) Toys R Me: 10.4%; S.A.O. Rouge: 8.16% Answer: (b) 29. Suppose the returns for Toys R Me and S.A.O. Rouge are normally distributed. Determine the 0.68 confidence interval for Toys R. Me. (a) (8.4%, 10.4%) (b) (–14.8%, 35.6%) (c) (–6.4%, 27.2%) (d) (2.00%; 18.80%) Answer: (d)