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MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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4. A report in LTO stated that the average age of jeepneys in the Philippines is 14 years. An operation manager of a jeepney company selects a sample of 40 jeepneys and finds the average of the jeepneys is 16.5 years. The standard deviation of the population is 2.3 years. At x=0.05, can it be concluded that the average age of jeepneys in his company is more than the national average?
Transcribed Image Text:4. A report in LTO stated that the average age of jeepneys in the Philippines is 14 years. An operation manager of a jeepney company selects a sample of 40 jeepneys and finds the average of the jeepneys is 16.5 years. The standard deviation of the population is 2.3 years. At x=0.05, can it be concluded that the average age of jeepneys in his company is more than the national average?
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