Food Processing Scenario

The next three questions are based on a food-processing factory, where the weight of cans of beans is monitored by weighing a sample of five randomly picked cans each day. The manufacturing process has been in control for the past several weeks, with the mean of sample means equaling 27.93 oz. and the range of sample means equaling 2.33 oz.

1)

Food Processing Scenario - question A

What are the appropriate upper and lower control limits for the X-chart that will be used to monitor these weights?

Group of answer choices

None of these options are correct

UCL = 34.92, LCL = 20.94

UCL = 30.26, LCL = 25.60

UCL = 29.28, LCL = 26.58

2)

Food Processing Scenario - question B

What are the appropriate upper and lower control limits for the R-chart?

Group of answer choices

UCL = 4.49, LCL = 0

UCL = 6.99, LCL = 0

UCL = 4.92, LCL = 0

UCL = 2.33, LCL = 0

3)

Food Processing Scenario - question C

New sampling results of the weights of samples of cans for this week are listed below. Is the process still in control?

Group of answer choices

No, the process is not in control. At least one point on the X-chart falls outside the control limits.

Yes, the process is in control.

No, the process is not in control. At least one point falls outside the control limits on both the X-bar and R-bar charts.

No, the process is not in control. At least one point on the R-chart falls outside the control limits.