Solve for the probability that a random sample of 25 sports utility vans has an average within 0.5 kilometer per liter of the mean.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Automotive engineers have found that the gas mileage in highway
driving of a certain sports utility van is normally distributed with
a mean of 13.6 kilometers per liter and a standard deviation of
1.5 kilometers per liter.
Solve for the probability that a random sample of 25 sports
utility vans has an average within 0.5 kilometer per liter of
the mean.
O P (| Z |< 1.67) = 0.9050
O P (| Z |> 1.67) = 0.0950
%3D
O P (| Z |2 1.67) = 0.9050
%3D
O P (| Z |< 1.67) = 0.0950
%3D
Transcribed Image Text:Automotive engineers have found that the gas mileage in highway driving of a certain sports utility van is normally distributed with a mean of 13.6 kilometers per liter and a standard deviation of 1.5 kilometers per liter. Solve for the probability that a random sample of 25 sports utility vans has an average within 0.5 kilometer per liter of the mean. O P (| Z |< 1.67) = 0.9050 O P (| Z |> 1.67) = 0.0950 %3D O P (| Z |2 1.67) = 0.9050 %3D O P (| Z |< 1.67) = 0.0950 %3D
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