Sharp PC-1500 Applications Manual page 79

All and more about Sharp PC-1500 at http://www.PC-1500.info
PROGRAM
}( - R CONTROL CHART
PROGRAM NO.
2
T I TL E
PS- B- 14
Table 111-3
Coefficients for cont rol limit ca lculation
Group
Sire
A,
03
o.
n
2
1.880 0 3.268
3
1.023 0 2.574
4
0.729
0 2.288
s
0.577
0
2.114
6 0.483
0
2.004
7 0.4 19 0 .076 1.924
8 0.373 0 .1 36 1.864
9
0.337 0. 184 1.816
10 0.308 0.223
1.777
[ Example
I
I.
X- R
control chart is generated from the next dat a sheet.
Grou1>
Measured values
No.
X1
Xz
X3
X4
Xs
I 4
6
6
6
s
2
s
5
s
9 4
3 8
10 13 9
s
4 10 8
2
3 2
5
5 3 4 4 4
6
3
3
4 4 2
7 4 8 11 10 12
8 8
3 12
12
10
9 4 4 5 3 3
10 5
3
4
8 5
11 3 12
12
13 5
12 5 5
13
10
5
13 4 I I 4
3
4
14 3 3 3
3
10
15 11
6
10
5
12
16
8 8
5
6
5
17 3 4 4 3 4
18 3 3 3
3 3
19 8 12
8
10 7
20 4 8 4 3 4
Do not sale this PDF!!!
- 73 -