In: Statistics and Probability
The following table contains the measurements of the key length dimension from a fuel injector. These samples were taken at one-hour intervals. Construct a three-sigma X ̅-chart and R-chart for the length of the fuel injector. What can you say about this process?
Sample Number | Observations | |||||||||||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | |
1 | 0.57 | 0.70 | 0.61 | 0.67 | 0.20 | 0.51 | 0.95 | 0.23 | 0.24 | 0.59 | 0.70 | 0.04 | 0.05 | 0.48 | 0.59 | 0.95 | 1.00 | 0.14 | 0.71 | 0.77 |