A plant manager is concerned with the variability of beer being filled in 12 oz.cans.The most appropriate control chart would be which of the following?
A)x-bar chart
B)R-chart
C)p-chart
D)c-chart
E)None of the above

Question

Quizplus · Accepted Answer

An R-chart (range chart) would be the most appropriate control chart because it is used to monitor the variation in a process when measuring continuous data in subgroups (in this case, the volume of beer in each 12 oz. can). The R-chart measures the range (difference between the largest and smallest values) within each subgroup, providing information on the variability of the filling process. The x-bar chart (A) is used to monitor the average of a process, which may not be as relevant in this case. The p-chart (C) is used for proportion data, such as the percentage of defective products, not for continuous data. The c-chart (D) is used for count data, such as the number of defects per unit, which is also not relevant in this case. Therefore, the best choice is B, the R-chart.

A Plant Manager Is Concerned with the Variability of Beer