Suppose you are trying to determine the capacity (in gallons) of
the gas tank needed on an airplane you are constructing. You want
to be able to travel 3200 nautical miles without stopping, and have
gathered data on the amount of fuel similar planes used during
flights of comparable length.
Consider a sample with the following properties: x̅ = 261.5, s =
18.73, n = 26
A) Calculate a confidence interval with α = 0.10
B) Calculate a confidence interval with α = 0.01
C) How would you interpret the results for the confidence interval
from part B?
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