# Question

The molecular weight of a particular polymer should fall between 2,100 and 2,350. Fifty samples of this material were analyzed with the results x = 2,275 and s = 60. Assume that molecular weight is normally distributed.

(a) Calculate a point estimate of Cpk..

(b) Find a 95% confidence interval on Cpk.

(a) Calculate a point estimate of Cpk..

(b) Find a 95% confidence interval on Cpk.

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