PLEASE ANSWER AND NYMBER THEM IN ORDER NEED ASAP

Le Meridien in San Francisco has 160 rooms. The hotel has an ample low fare demand at the room rate of $200 per night, but the demand from the high fare class which pays $450 per night on average, is uncertain. The high fare demand is normally distributed with mean 60 and standard deviation 42. (The Normal distribution table is attached below.)

1.) How many rooms should Le Meridien protect for high fare customers to maximize expected revenue?

2.) Consider the Le Meridien example above. What is the cost of over-estimation?

3.) Consider the Le Meridien example above. What is the cost of under-estimation?

4.) Consider the Le Meridien example above. What is the critical ratio?

5.) Overbooking will not increase revenue when

Group of answer choices

there is no seasonality effect

the airline charges customers for cancellations

there are no no-shows or cancellations

there are only a few fare classes