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# A dynamic cone penetrometer (DCP) is used for measuring material resistance penetration (mrn /blow) as cone IS driven into pavement or subgrade. Suppose that for pa...

## Question

###### A dynamic cone penetrometer (DCP) is used for measuring material resistance penetration (mrn /blow) as cone IS driven into pavement or subgrade. Suppose that for particular application it is required that the true mean DCP value for = cer- tain type of pavement be less than 30. The pavement will not be used unless there is conclusive evidence that the specification has been met. For random sample of Size n = 102_ the sample mean is 24.5 and the sample standard deviation is 21.2 A Q-Q plot of the

A dynamic cone penetrometer (DCP) is used for measuring material resistance penetration (mrn /blow) as cone IS driven into pavement or subgrade. Suppose that for particular application it is required that the true mean DCP value for = cer- tain type of pavement be less than 30. The pavement will not be used unless there is conclusive evidence that the specification has been met. For random sample of Size n = 102_ the sample mean is 24.5 and the sample standard deviation is 21.2 A Q-Q plot of the data shows that the distribution of the data cannot reasonably as- sumed to be normal (See Figure 1). Using these data, perform hypothesis test to assess whether this sample comes from population that satisfies the requirement Normal 0-Q Plot 8 J i 8 CCLL Theoretical Quantiles Figure 17: Q-Q Plot showing deviation from normality for data in problem 4. 0oO

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