Industrial Engineering

1. c-Chart
c-Chart Formulas
Output:
No. of samples 10 c-bar 2.50
Sigma limits 2 UCL 5.66
LCL 0.00
Number of
Sample Defects c-Bar UCL LCL
1 1 2.50 5.66 0.00
2 2 2.50 5.66 0.00
3 3 2.50 5.66 0.00
4 3 2.50 5.66 0.00
5 2 2.50 5.66 0.00
6 2 2.50 5.66 0.00
7 4 2.50 5.66 0.00
8 4 2.50 5.66 0.00
9 2 2.50 5.66 0.00
10 2 2.50 5.66 0.00
Total 25
Calculations
Input:
0
1
2
3
4
5
6
1 2 3 4 5 6 7 8 9 10
Number
of
Defects
Sample Number
Input the sigma limits and
number of defects in each
sample. UCL c z c
 
LCL c z c
 