A normally distributed quality characteristcs

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A normally distributed quality characteristcs has specification limits at LSL=50 and USL=60. a random sample of size 35 results in Xbar = 55.5 and s= 0.9

calculate a piont estimate of cpk

find a 95% confidence interval on cpk

is this a 6 standard devation process

Reference no: EM13260382

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