You are the operations manager for an airline and you areconsidering a higher fare level for passengers in aisle seats. Howmany randomly selected air passengers must you​ survey? Assume thatyou want to be 99​% confident that the sample percentage is within2.5 percentage points of the true population percentage. Completeparts​ (a) and​ (b) below.
a. Assume that nothing is known about the percentage ofpassengers who prefer aisle seats.
___ (Round up to the nearest​ integer.)
b. Assume that a prior survey suggests that about 31​% of airpassengers prefer an aisle seat.
___(Round up to the nearest​ integer.)