You are the operations manager of American Airlines, and you are considering a h

Question

You are the operations manager of American Airlines, and you are considering a higher fare level fo passengers in aisle seats. You want to estimate the percentage of passengers who now prefer aisle eats. How many randomly selected air passengers must you survey? Assume that you 95% confident that the sample percentage is within 2.5 percentage points of the true population percentage. a. Assume you know nothing about the percentage of passengers who prefer aisle seats. b. Assume that a recent survey suggests that about 38% of air passengers prefer an aisle seat.

Explanation / Answer

a)

Hence sample size = 1537

b)

Sample size = 1448

Sample Size Given CI Level 95% p 0.5 ME 0.025 z-value of 95% CI 1.9600 n = (z/ME)^2*p*(1-p) 1537

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