A control chart that reflects the amount of dispersion,or spread,present within each sample is known as a(n)
A)p-chart
B)c-chart
C)R-chart
D) -chart

Question

A control chart that reflects the amount of dispersion,or spread,present within each sample is known as a(n)
A)p-chart 
B)c-chart 
C)R-chart 
D) -chart

Quizplus · Accepted Answer

The R-chart, or Range chart, measures the dispersion within each sample by plotting the range (highest value minus lowest value) of each sample. This chart is useful for detecting changes in variability over time. The p-chart and c-chart are used for monitoring the proportion of nonconforming items in a sample or process, while the 11eac5d1_2912_8e7a_888f_81e23c61830e_TB7749_11-chart (also known as the X-bar chart) is used to track changes in the average value of a sample or process.

A Control Chart That Reflects the Amount of Dispersion,or Spread,present