8. Determine the central lines and control limits for Z and W charts with a subgroup size of 2 and draw the graphs. If the target X is 1.50 and the target R is 0.08, determine the plotted points for three subgroups.

Transcribed Image Text:

Subgroup X X 123 1.55 1.59 1.43 1.53 3 1.30 1.38