1 files changed, 31 insertions, 0 deletions
diff --git a/3513/CH7/EX7.2/ch7_2.sce b/3513/CH7/EX7.2/ch7_2.sce
new file mode 100644
index 000000000..aca5acedc
--- /dev/null
+++ b/3513/CH7/EX7.2/ch7_2.sce
@@ -0,0 +1,31 @@
+//Calculate the control limits for the p-chart using 3σ limits
+//page no 143
+clear
+clc;
+d=20;
+n=4000;
+P1=0.116;
+//Control limits for p-chart
+mprintf("\P1 = %.4f \n",P1);
+UCL=P1+3*sqrt((P1*(1-P1))/n);
+mprintf("\UCL = %.2f \n",UCL);
+LCL=P1-3*sqrt((P1*(1-P1))/n);
+mprintf("\LCL = %.2f \n",LCL);
+CL=P1;
+mprintf("\CL = %.2f \n",CL);
+P1 =(116-15-18)/(18*50);
+//Again control limits
+UCL=P1+3*sqrt((P1*(1-P1))/n);
+mprintf("\UCL = %.2f \n",UCL);
+LCL=P1-3*sqrt((P1*(1-P1))/n);
+mprintf("\LCL = %.2f \n",LCL);
+CL=P1;
+mprintf("\CL = %.2f \n",CL);
+//Again one more subgroup is crossing the crossing limits
+P1 =(116-15-18-12)/(17*50);
+UCL=P1+3*sqrt((P1*(1-P1))/n);
+mprintf("\UCL = %.2f \n",UCL);
+LCL=P1-3*sqrt((P1*(1-P1))/n);
+mprintf("\LCL = %.2f \n",LCL);
+CL=P1;
+mprintf("\CL = %.2f \n",CL);