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% confident that the sample percentage is within 1.5 percentage points of the true population percentage
The sample size is given by the formula n= p(1-p) (z/E) 2 Where E is the margin of error. We... View the full answer
- sorry i forget to put the below question part(b)Assume prior studies have shown that about 40% of full-time students earn bachelor's degrees in four years or less.
- Apr 04, 2018 at 5:22pm
- If p=0.4 then n=0.4*0.6*(1.645/0.015)^2 = 2887
- Apr 04, 2018 at 5:52pm