Question

Table 15-1 Sample Size Mean Factor Upper Range Lower Range n A2 D4 D3 2 1.880 3.628 0 3 1.023 2.574 0 4 0.729 2.282 0 5 0.577 2.114 0 6 0.483 2.004 0 7 0.419 1.924 0.076 8 0.373 1.864 0.136 9 0.337 1.816 0.184 10 0.308 1.777 0.223 12 0.266 1.716 0.284 1) Use the data shown below and the information in Table 15-1 to develop a control chart that monitors central tendency. Use your chart to make an assessment N is the process in control? Sample X1 X2 X3 X4 X5 Xbar Range 1 10.23 10.14 10.21 10.73 10.76 10.41 0.62 2 10.8 10.69 10.11 10.79 10.63 10.6 0.69 3 10.12 10.84 10.96 10.21 10.97 10.62 0.85 4 10.27 10.85 10.63 10.37 10.92 10.61 0.65 5 10.78 10.54 10.74 10.39 10.41 10.57 0.39 6 10.24 10.17 10.33 10.27 10.36 10.27 0.19 7 10.17 10.07 10.66 10.4 10.38 10.34 0.59 8 10.76 10.99 10.86 10.36 10.76 10.75 0.63 9 10.12 10.5 10.47 10.59 10.73 10.48 0.61 10 10.15 10.32 10.47 10.42 10.43 10.36 0.32

          Table 15-1
Sample Size
Mean Factor
Upper Range Lower Range
n
A2
D4
D3
2
1.880
3.628
0
3
1.023
2.574
0
4
0.729
2.282
0
5
0.577
2.114
0
6
0.483
2.004
0
7
0.419
1.924
0.076
8
0.373
1.864
0.136
9
0.337
1.816
0.184
10
0.308
1.777
0.223
12
0.266
1.716
0.284
1) Use the data shown below and the information in Table 15-1 to develop a control
chart that monitors central tendency. Use your chart to make an assessment N is the
process in control?
Sample
X1
X2
X3
X4
X5
Xbar
Range
1
10.23
10.14
10.21
10.73
10.76
10.41
0.62
2
10.8
10.69
10.11
10.79
10.63
10.6
0.69
3
10.12
10.84
10.96
10.21
10.97
10.62
0.85
4
10.27
10.85
10.63
10.37
10.92
10.61
0.65
5
10.78
10.54
10.74
10.39
10.41
10.57
0.39
6
10.24
10.17
10.33
10.27
10.36
10.27
0.19
7
10.17
10.07
10.66
10.4
10.38
10.34
0.59
8
10.76
10.99
10.86
10.36
10.76
10.75
0.63
9
10.12
10.5
10.47
10.59
10.73
10.48
0.61
10
10.15
10.32
10.47
10.42
10.43
10.36
0.32

Table 15-1
Sample Size
Mean Factor
Upper Range Lower Range
n
A2
D4
D3
2
1.880
3.628
0
3
1.023
2.574
0
4
0.729
2.282
0
5
0.577
2.114
0
6
0.483
2.004
0
7
0.419
1.924
0.076
8
0.373
1.864
0.136
9
0.337
1.816
0.184
10
0.308
1.777
0.223
12
0.266
1.716
0.284
1) Use the data shown below and the information in Table 15-1 to develop a control
chart that monitors central tendency. Use your chart to make an assessment N is the
process in control?
Sample
X1
X2
X3
X4
X5
Xbar
Range
1
10.23
10.14
10.21
10.73
10.76
10.41
0.62
2
10.8
10.69
10.11
10.79
10.63
10.6
0.69
3
10.12
10.84
10.96
10.21
10.97
10.62
0.85
4
10.27
10.85
10.63
10.37
10.92
10.61
0.65
5
10.78
10.54
10.74
10.39
10.41
10.57
0.39
6
10.24
10.17
10.33
10.27
10.36
10.27
0.19
7
10.17
10.07
10.66
10.4
10.38
10.34
0.59
8
10.76
10.99
10.86
10.36
10.76
10.75
0.63
9
10.12
10.5
10.47
10.59
10.73
10.48
0.61
10
10.15
10.32
10.47
10.42
10.43
10.36
0.32

Added by Roy T.

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