l You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% condent that the sample percentage is within 1.5 percentage points of the true population percentage. Complete parts (a) and (b) below. E a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n=D (Round up to the nearest integer.)