You will have $ in 20 years if you set aside $2,000 at 8%. (Use the future value tables from Chapter 5.)
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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