Formulars

question

Attribute Data Chart Formulas Chart Type Subgroup Size Control Limits p Chart Fraction Defective Variable or Constant Central Line: D-p/ UCL = p+3V (1-P)/ LCL =-3V (1-P)/ Central Line: no = np/k UCL = np +3 Vnp (1-5) LCL = np - 3Vmp (1-5) np Chart Constant Number Defective c Chart Number of Defects Constant Central Line: T = Ec/k UCL = T+3VE LCL = 7 -3 VE u Chart Number of Defects Per Unit Variable or Constant Central Line: ={c/En UCL = +3VT LCL = - 3 Vln Terms Defraction of defective units mpanumber of defective units Cunumber of defects u number of defects per unit n subgroup sample size K-number of subgroups UCL upper controllimit LCL lower controllimit 2. For the following information, create an np control chart: np np np 5 6 Sample size 50 50 50 50 50 50 50 50 50 50 12 15 8 10 4 7 16 Sample size 50 50 50 50 50 50 50 50 50 50 12 22 8 10 5 13 Sample size 50 50 50 50 50 50 50 50 50 50 20 18 24 15 9 12 7 13 9 6 14 10