hotel operating with a capacity of $300$ similar rooms, decides five fare classes for taking bookings during Christmas week due to the high demand. The Demand $($normally distributed$)$ and standard deviation for the fare class are given as follows.FareClassPriceMean demandStandard deviation$112000255210000151535500403042500552051500$What should be the protection levels for the classes, using EMSR$-$b$,$ Also compare the results with that of EMSR$-$a