If the process variability steadily increases,we would observe
A)An alternating pattern of high value followed by a low value on the R-chart.
B)An upward trend on the R-chart.
C)A downward trend on the R-chart.
D)An increasing gradual funnel pattern on the R-chart.
E)A decreasing gradual funnel pattern on the R-chart.

Question

Quizplus · Accepted Answer

If the process variability steadily increases, we would observe an upward trend on the R-chart. This indicates that the process is becoming more variable over time. An alternating pattern of high value followed by a low value on the R-chart, a gradual funnel pattern either increasing or decreasing, are indicative of other issues in process control.

If the Process Variability Steadily Increases,we Would Observe