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Consider a process that includes careful testing of each manufactured defibrillator. Listed ( below are the numbers of defective defibrillators in 20 successive batches of 10,000. Find the values you would use for the centerline, the upper control limit, and the lower control limit.
20 14 22 27 12 12 18 23 25 19 24 28 21 25 17 19 17 22 15 20
a. p = 0.040000
UCL 0.041 039, LCL = 0.03 8961
b. p 0.002000
UCL= 0.003340, LCL= 0.000660
c. p=0.0020000
UCL = 0, 021200, LCL = 0
d. p 0.040000
UCL = 0.041470, LCL = 0.038530


Sagot :

Your correct answer is C.
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