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Precision Doors is an organization that installs new garage doors on residential homes. Suppose the installation time for a residence

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Precision Doors is an organization that installs new garage doors on residential homes. Suppose the installation time for a residence follows the uniform distribution with a minimum time of 190 minutes and a maximum time of 370 minutes.

a. What is the probability that an installation will require less than 4 hours to complete?

b. What is the probability that an installation will require more than 5 hours to complete?

c. What is the probability that an installation will require between 250 and 350 minutes to complete?

d. Calculate the mean and standard deviation for this distribution.

e. Precision Door has a goal that 80% of the time, the installation time for a residence will be less than 6 hours. Is this goal being achieved?

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...

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a b c d e x 2 0 80 370 190 190 33…View the full answer


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Business Statistics

Business Statistics

ISBN: 9780321925121

2nd Edition

Authors: Robert A. Donnelly

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Question Posted: July 17, 2015 03:15:57
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