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Question
At your first job out of college you have been assigned to the production of bottled 20 oz. soda.
The process has upper and lower limits of 20.5 and 19.5 oz, respectively, with a mean of 19.8 oz and standard deviation of .3 oz. Your manager has requested the process produce no more than 3.4 defects per 1 million bottles produced. Calculate Cpk and then determine if the process is capable or if you should be looking for assignable variation.
Answer
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