Question: I'm using minitab till the trial ends then excel. thank you for the help. 5- Data represented below is the hardness of coil springs collected

I'm using minitab till the trial ends then excel.

I'm using minitab till the trial ends then excel. thank you for the help.

5- Data represented below is the hardness of coil springs collected through destructive tests. 10 samples taken over 10 days where each sample contains only a single test (single observation in each sample). a) Calculate control limits for individuals (I) and moving range (MR) b) Plot I-chart. Is the process statistically in control? Sample No. 1 2 3 4 5 6 7 8 9 10 Measurement 46.63 48.71 48.45 48.55 48.16 48.24 48.56 48.82 48.62 48.69

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