Question

Calculate 2-sigma and 3-sigma upper and lower control limits for means of samples 4 and
prepare a control chart for a drilling machine, which bores holes with a mean deviation of
0.5230 cm and a standard deviation of 0.0032 cm.

Answer 1

the W sigma and the upper and lower
so 0.5230 + 0.0032

$0.5230 + 0.0032$