Estimate the difference between true average roughness for sandstone and for the shale in such a way that information is conveyed about the precision and reliability of the estimate. Interpret the difference between true average roughness for sandstone and for the shale. Check whether the true average roughness of sandstone is different from the roughness of shale.

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Chapter 9, Problem 90SE

To determine

Estimate the difference between true average roughness for sandstone and for the shale in such a way that information is conveyed about the precision and reliability of the estimate.

Interpret the difference between true average roughness for sandstone and for the shale.

Check whether the true average roughness of sandstone is different from the roughness of shale.

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