A minibar in a hotel room generally provides an impression that the hotel is more upscale. pkf hospitality research reported that minibars provide a mean annual revenue of $368 per hotel room (usa today, february 9, 2012). consider an upscale hotel in san antonio, texas, that has a total of 330 rooms, each with a minibar. assume that the total monthly revenue for this hotel's minibar service is normally distributed with a standard deviation of $2,200. a. using the mean annual revenue of $368 per minibar, what is the mean total monthly revenue for the minibar service at this hotel? b. what is the probability that the monthly minibar service provides over $12,000 in revenues for this hotel? c. what is the probability that the monthly minibar service provides less than $7,500 in revenues for this hotel?
