Moving range control chart
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A New York company manufactures 0.0109-in. thick aluminum cans for a major beverage supplier. Refer to the excel spread sheet (attached) and I have to conduct an analysis of the process data for the cans that are 0.0111 in. thick. The values in the data set are the measured axial loads of cans, and the top lids are pressed into place with pressures that vary between 158lb and 165lb.
Analyzing the results: Should the company take any corrective action? I have to address the issues of statistical stability, but also the ability of the cans to withstand the pressures applied when the top lids are pressed into place.
Also compare the behavior of the 0.0111 in cans to the behavior of the 0.0109 in cans and recommend which thickness should be used.
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Solution Summary
The solution contain stepwise calculation of LCL and UCL of the given data.
Solution Preview
Please see attached file.
Shewhart Control Chart for individual measurements are suitable for this problem. The moving range of two successive observations are the basis of estimating the process variability. The moving range is defined as the
MRi = | ...
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