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Standard deviation of production process.

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Widgets production process yields widgets with an average life of 180 hours and σ = 10 hours. The tolerance upper and lower specification limits are 240 hours and 160 hours, respectively.

Is this process capable of producing instruments to specification?

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standard deviation of production process.
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Solution Summary

Standard deviation of a production process is determined. From this, it is determined is the process is capable of producing instruments to specification.