You are the operations manager for an airline and you

are considerng a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 99% confident that the sample

percentage is

within 4.5 percentage points of the true population percentage. Complete parts (a) and (b) below.

a. Assume that nothing is known about the percentage of passengers who

prefer aisle seats

b Assume that a prior survey suggests that about 36% of air pass

ingers prefer an aisle seat