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vova2212
1 month ago
14

You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How man

y randomly selected air passengers must you​ survey? Assume that you want to be 95​% confident that the sample percentage is within 4.5 percentage points of the true population percentage.
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 passengers prefer an aisle seat.
Mathematics
1 answer:
Zina [12.3K]1 month ago
5 0
Step-by-step explanation: a. Assuming there are no prior changes, the confidence interval is set at 95%. The margin of error is defined as 4.5% or 0.045. Without prior knowledge of the sample proportion of passengers wanting aisle seats, we set it to zero. Thus, the estimated sample size needed is approximately 475 passengers. b. Given a confidence level of 95%, a margin of error of 0.045, and knowledge that about 36% prefer aisle seating, the sample size required is calculated to be roughly 438 passengers.
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