Light bulbs of a certain type are advertised as having an average lifetime of 750 hours. The price of these bulbs is very favorable, so a potential customer has decided to go ahead with a purchase arrangement unless it can be conclusively demonstrated that the true average lifetime is smaller than what is advertised. A random sample of 50 bulbs was selected and the lifetime of each bulb was determined. The average lifetime of these bulbs was found to be 738.4 hours with a standard deviation of 38.2 hours. Conduct a hypothesis test to help potential customer make their decision. Take α = 0.1
Light bulbs of a certain type are advertised as having an average lifetime of 750 hours. The price of these bulbs is very favorable, so a potential customer has decided to go ahead with a purchase arrangement unless it can be conclusively demonstrated that the true average lifetime is smaller than what is advertised. A random sample of 50 bulbs was selected and the lifetime of each bulb was determined. The average lifetime of these bulbs was found to be 738.4 hours with a standard deviation of 38.2 hours. Conduct a hypothesis test to help potential customer make their decision. Take α = 0.1
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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Light bulbs of a certain type are advertised as having an average lifetime of 750 hours. The
price of these bulbs is very favorable, so a potential customer has decided to go ahead with a
purchase arrangement unless it can be conclusively demonstrated that the true average lifetime
is smaller than what is advertised. A random sample of 50 bulbs was selected and the lifetime
of each bulb was determined. The average lifetime of these bulbs was found to be 738.4 hours
with a standard deviation of 38.2 hours. Conduct a hypothesis test to help potential customer
make their decision. Take α = 0.1
price of these bulbs is very favorable, so a potential customer has decided to go ahead with a
purchase arrangement unless it can be conclusively demonstrated that the true average lifetime
is smaller than what is advertised. A random sample of 50 bulbs was selected and the lifetime
of each bulb was determined. The average lifetime of these bulbs was found to be 738.4 hours
with a standard deviation of 38.2 hours. Conduct a hypothesis test to help potential customer
make their decision. Take α = 0.1
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