Using the A2 value (from the table), determine the lower control limit for (X-Bar) Control Chart.

Determine the upper control limit for (X-Bar) Control Chart.

Using the D3 value, determine the lower control limit for the Range (R) control chart.

Using the D4 value, determine the upper control limit for the Range (R) control chart.

The process is in control considering both X-Bar and R charts.

True

False

D3 0 0 0 CONOWN 0 A2 1.88 1.02 0.73 0.58 0.48 0.42 0.37 0.34 0.31 0.29 0 D4 3.27 2.57 2.28 2.11 2.00 1.92 1.86 1.82 1.78 1.74 9 10 11 0.08 0.14 0.18 0.22 0.26 D3 0 0 0 CONOWN 0 A2 1.88 1.02 0.73 0.58 0.48 0.42 0.37 0.34 0.31 0.29 0 D4 3.27 2.57 2.28 2.11 2.00 1.92 1.86 1.82 1.78 1.74 9 10 11 0.08 0.14 0.18 0.22 0.26