Allegiant Airlines charges a mean base fare of $85. In addition, the airline charges for making a reservation on its website, checking bags, and...

Allegiant Airlines charges a mean base fare of $85. In addition, the airline charges for making a reservation on its website, checking bags, and inflight beverages. These additional charges average $39 per passenger. Suppose a random sample of 70 passengers is taken to determine the total cost of their flight on Allegiant Airlines. The population standard deviation of total flight cost is known to be $40.