1) The defect rate for your product has historically been about 2.00%. For a sample size of 300, the upper and lower 3-sigma con
1 answer:
Answer:
UCL= <u>0.044</u>
LCL=<u>-0.004</u>
Explanation:
Use following formula to calculate the UCL and LCL
UCL = p + z
Where
P = defect rate = 2% = 0.02
z = sigma control chart limit = 3
n = samploe size = 300
PLacing values in the formula
UCL = 0.02+3
UCL = 0.02 + 3 x 0.008082904
UCL = 0.02 + 0.024248711
UCL = 0.044248711
UCL = 0.044
Now calculate LCL using folllowing formula
LCL = p - z
Where
P = defect rate = 2% = 0.02
z = sigma control chart limit = 3
n = samploe size = 300
PLacing values in the formula
LCL = 0.02 - 3
LCL = 0.02 - 3 x 0.008082904
LCL = 0.02 - 0.024248711
LCL = -0.004248711
LCL = -0.004
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Explanation:
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