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A company is planning to replace all 10,000 of the light bulbs with new energy saving bulbs. These bulbs have a lifetime that follows an exponential distribution with mean of 4,000 hours. If all the companies lights are on nine hours a day and five days a week, approximately how long will it be before the company has to replace the first bulb? Approximately how long, in weeks, will it be before they need to replace the last of these 10.000 bulb?

A company is planning to replace all 10,000 of the light bulbs with new energy saving bulbs. These bulbs have a lifetime that follows an exponential distribution with mean of 4,000 hours. If all the companies lights are on nine hours a day and five days a week, approximately how long will it be before the company has to replace the first bulb? Approximately how long, in weeks, will it be before they need to replace the last of these 10.000 bulb?

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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A company is planning to replace all 10,000 of the light bulbs with new energy saving bulbs. These bulbs have a lifetime that follows an exponential distribution with mean of 4,000 hours. If all the companies lights are on nine hours a day and five days a week, approximately how long will it be before the company has to replace the first bulb? Approximately how long, in weeks, will it be before they need to replace the last of these 10.000 bulb?
Transcribed Image Text:A company is planning to replace all 10,000 of the light bulbs with new energy saving bulbs. These bulbs have a lifetime that follows an exponential distribution with mean of 4,000 hours. If all the companies lights are on nine hours a day and five days a week, approximately how long will it be before the company has to replace the first bulb? Approximately how long, in weeks, will it be before they need to replace the last of these 10.000 bulb?
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