The overall length of a skew used in a knee replacement device is monitored using and R charts….

The overall length of a skew used in a knee replacement device is monitored using  and R charts. The following table gives the length for 20 samples of size 4. (Measurements are coded from 2.00 mm; that is, 15 is 2.15 mm.)

(a) Using all the data, find trial control limits for   and R charts, construct the chart, and plot the data.

(b) Use the trial control limits from part (a) to identify out of-control points. If necessary, revise your control limits, assuming that any samples that plot outside the control limits can be eliminated.

 

Looking for a Similar Assignment? Let us take care of your classwork while you enjoy your free time! All papers are written from scratch and are 100% Original. Try us today!