= A Disney hotel, with a capacity of 300 rooms, numbers its fare classes from higher to lower as 1, 2, and 3. The room prices for these classes are pi = $1000, p2 = $750, p3 $500. The demands for these fare classes turn out to have normal distributions with a mean of 50 and a standard deviation of 10. The hotel uses the EMSR-a heuristic to compute the protection levels and booking limits. (a) What is the protection level 12 for classes {1, 2}? [Select] (b) What is the protection level y3 for classes {1, 2, 3}? [Select] (c) What is the booking limit b3 for class 3? [Select]