The following table contains the measurements of the key length dimension from a fuel injector. These...

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
Sample Number	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

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Solution:

The table shows the value of constants in control chart:

orchestra answered 1 year ago

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