Saint GBA334 unit 8 assignment
Question # 00027724
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Updated on: 10/08/2014 04:03 AM Due on: 10/30/2014
Small boxes of NutraFlakes cereal are labeled “net weight 10 ounces.” Each hour, random samples of size n = 4 boxes are weighed to check process control. Five hours of observations yielded the following:
Weight
Time Box 1 Box 2 Box 3 Box 4
9 A.M. 9.8 10.4 9.9 10.3
10 A.M. 10.1 10.2 9.9 9.8
11 A.M. 9.9 10.5 10.3 10.1
Noon 9.7 9.8 10.3 10.2
1 P.M. 9.7 10.1 9.9 9.9
Using these data and the information in the Control Chart Limits Factors Table below (if you are doing it by hand), construct limits for xbar- and R-charts. Is the process in control? What other steps should the QC department follow at this point?
Weight
Time Box 1 Box 2 Box 3 Box 4
9 A.M. 9.8 10.4 9.9 10.3
10 A.M. 10.1 10.2 9.9 9.8
11 A.M. 9.9 10.5 10.3 10.1
Noon 9.7 9.8 10.3 10.2
1 P.M. 9.7 10.1 9.9 9.9
Using these data and the information in the Control Chart Limits Factors Table below (if you are doing it by hand), construct limits for xbar- and R-charts. Is the process in control? What other steps should the QC department follow at this point?
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Solution: Saint GBA334 unit 8 assignment