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Mean tensile strength

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A product development group determines that it must have a fiber, which among other properties, as a minimum tensile strength of 2.500 gm in 99 percent of the fiber used. Manufacturer-ABC offers to supply such fiber and a contract is arranged.

Manufacturer-ABC knows that the standard deviation () for the process of 0.020 gm. What minimum aimed at value of the mean is required to assure compliance with the contract? Assume the process is in statistical control and the distribution is normal.

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Solution Summary

For given data with minimum tensile strength and standard deviation, mean value is estimated.

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