In Exercise 4.139 you learned that Brighton Webs LTD modeled the arrival time of requests to a

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In Exercise 4.139 you learned that Brighton Webs LTD modeled the arrival time of requests to a Web server within each hour using a uniform distribution. Specifically, the number of seconds x from the start of the hour that the request is made is uniformly distributed between 0 and 3,600 seconds. In a random sample of n = 60 Web server requests, let x represent the sample mean number of seconds from the start of the hour that the request is made.
a. Find E() and interpret its value.
b. Find Var().
c. Describe the shape of the sampling distribution of 
d. Find the probability that x is between 1,700 and 1,900 seconds.
e. Find the probability that x exceeds 2,000 seconds.
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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Statistics For Business And Economics

ISBN: 9780321826237

12th Edition

Authors: James T. McClave, P. George Benson, Terry T Sincich

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