A company services home air conditioners. It is known that times for service calls follow a normal
Question:
a. What is the probability that a single service call takes more than 65 minutes?
b. What is the probability that a single service call takes between 50 and 70 minutes?
c. The probability is 0.025 that a single service call takes more than how many minutes?
d. Find the shortest range of times that includes 50% of all service calls.
e. A random sample of four service calls is taken.
What is the probability that exactly two of them take more than 65 minutes? 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 P Z P Z 5 1 F Z 5 3085 b P Z P 1 Z 1 2 F z 1 1 6826 c P Z 196 025 196 Xi 796 d P Z 675 25 67...View the full answer
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Related Book For 
Statistics For Business And Economics
ISBN: 9780132745659
8th Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
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