dolution
dolution.
Sampling 4 pieces of? precision-cut
wire? (to be used in computer? assembly) every hour for
the past 24 hours has produced the following? results:
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Hour |
x |
R |
Hour |
x |
R |
Hour |
x |
R |
Hour |
x |
R |
1 |
3.35?” |
0.65?” |
7 |
2.95?” |
0.58?” |
13 |
3.11?” |
0.80?” |
19 |
4.51?” |
1.56?” |
2 |
3.20 |
1.18 |
8 |
2.75 |
1.13 |
14 |
2.73 |
1.26 |
20 |
2.79 |
1.04 |
3 |
3.32 |
1.48 |
9 |
2.92 |
0.71 |
15 |
3.02 |
1.11 |
21 |
2.65 |
1.03 |
4 |
3.39 |
1.21 |
10 |
2.75 |
1.33 |
16 |
2.74 |
0.55 |
22 |
3.28 |
0.51 |
5 |
2.97 |
1.12 |
11 |
2.83 |
1.22 |
17 |
2.76 |
1.48 |
23 |
2.84 |
1.63 |
6 |
2.96 |
0.32 |
12 |
2.97 |
0.45 |
18 |
2.64 |
1.24 |
24 |
2.54 |
0.92 |
Based on the sampling? done, the control limits
for ?3-sigma x chart are ?(round all
intermediate calculations to three decimal places before proceeding
with further ?calculations)?:
Upper Control Limit ?(UCLx?) ?=
_____ inches ?(round your response to three
decimal? places).