Question

Suppose that you have been assigned to the production of bottled 20 oz. soda.The process has upper and lower spec limits of 20.5 and 19.5 oz, respectively, with a mean of 19.8 oz and standard deviation of 0.1 oz. Your manager has requested the process produce no more than 3.4 defects per 1 million bottles produced.

a)Calculate Cp and Cpk and then determine if the process is capable according to the manager's standard?

Answer 1

Answer:

Given Data

Production capacity = 20oz

USL ( Upper spec limit ) = 20.5 oz

LSL (Lower spec limit ) = 19.5 oz

Process mean = 19.8 oz

Standard deviation (SD) = 0.1oz

Calculation of cp :

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