Problem 2) The mean time to retrieve a record from an online database is 222 milliseconds with a standard deviation of 62 milliseconds. The design criterion requires that at least 80% of all retrieval imes must not differ from the mean by more than 83 milliseconds. ) Use Chebyshev's inequality to establish whether the design criterion is satisfied. ) Would the design criterion be satisfied if it were known that the retrieval time is normally distributed with a mean of 222 milliseconds and a standard deviation of 62 milliseconds?
Problem 2) The mean time to retrieve a record from an online database is 222 milliseconds with a standard deviation of 62 milliseconds. The design criterion requires that at least 80% of all retrieval imes must not differ from the mean by more than 83 milliseconds. ) Use Chebyshev's inequality to establish whether the design criterion is satisfied. ) Would the design criterion be satisfied if it were known that the retrieval time is normally distributed with a mean of 222 milliseconds and a standard deviation of 62 milliseconds?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:Problem 2) The mean time to retrieve a record from an online database is 222 milliseconds with a
standard deviation of 62 milliseconds. The design criterion requires that at least 80% of all retrieval
times must not differ from the mean by more than 83 milliseconds.
a) Use Chebyshev's inequality to establish whether the design criterion is satisfied.
b) Would the design criterion be satisfied if it were known that the retrieval time is normally distributed
with a mean of 222 milliseconds and a standard deviation of 62 milliseconds?
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