Week 4 Extra Examples

Lognormal example if experience shows that the natural

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Unformatted text preview: s assumption is reasonable . It is likely that previous experience with the same kind of road contrstruction will provide data which can be checked for normality using one of the methods normal scores or normal prob plot. Lognormal Example If experience shows that the natural logarithms of processing time for job submitted to a certain mainframe computer have the normal distribution with a mean of 1.5 and a standard deviation of 0.4, find the probability that such a time will lie between 3 and 6 minutes. Solution The required probability is equivalent to the probability that a normally distributed rv with mean 1.5 and standard deviation 0.4 will assume a...
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