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Periodic assessment of stress in paved highways is important to maintaining safe roads The department of Transportation recently collected data on the number of cracks

Periodic assessment of stress in paved highways is important to maintaining safe roads. The department
of Transportation recently collected data on the number of cracks (called crack intensity) in an
undivided two-lane highway using van-mounted state of the art video technology. The mean number of
cracks found in a sample of eight 50-meter sections of the highway was = 0.210, with the variance of s2=0.011.For safety purposes the recommended maximum mean crack intensity is 0.100. Test the hypothesis that the true mean of the highway exceeds the recommended maximum. Use a=0.10

Aug 05 2020 Read more Less More

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