Bag-Filling Machines at Jelly Belly. The variance in a production process is an important measure of the quality of the process. A large variance often signals an opportunity for improvement in the process by finding ways to reduce the process variance. Jelly Belly Candy Company is testing two machines th use different technologies to fill three-pound bags of jelly beans. The file bags_r.csv contains a sample data on the weights of bags (in pounds) filled by each machine. Conduct a statistical test to determine whether there is a significant difference between the variances in the bag weights for the two machines Activity Frame Use a 0.05 level of significance. What is your conclusion? Which machine, if either, provides the great 1:4

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Machine1,Machine2 2.95,3.22 3.45,3.3 3.5,3.34 3.75,3.28 3.48,3.29 3.26,3.25 3.33,3.3 3.2,3.27 3.16,3.38 3.2,3.34 3.22,3.35 3.38,3.19 3.9,3.35 3.36,3.05 3.25,3.36 3.28,3.28 3.2,3.3 3.22,3.28 2.98,3.3 3.45,3.2 3.7,3.16 3.34,3.33 3.18, 3.35, 3.12,

Bag-Filling Machines at Jelly Belly. The variance in a production process is an important measure of
the quality of the process. A large variance often signals an opportunity for improvement in the process
by finding ways to reduce the process variance. Jelly Belly Candy Company is testing two machines that
use different technologies to fill three-pound bags of jelly beans. The file bags_r.csv contains a sample of
data on the weights of bags (in pounds) filled by each machine. Conduct a statistical test to determine
whether there is a significant difference between the variances in the bag weights for the two machines.
Activity Frame
Use a 0.05 level of significance. What is your conclusion? Which machine, if either, provides the greater
opportunity for quality improvements?
Transcribed Image Text:Bag-Filling Machines at Jelly Belly. The variance in a production process is an important measure of the quality of the process. A large variance often signals an opportunity for improvement in the process by finding ways to reduce the process variance. Jelly Belly Candy Company is testing two machines that use different technologies to fill three-pound bags of jelly beans. The file bags_r.csv contains a sample of data on the weights of bags (in pounds) filled by each machine. Conduct a statistical test to determine whether there is a significant difference between the variances in the bag weights for the two machines. Activity Frame Use a 0.05 level of significance. What is your conclusion? Which machine, if either, provides the greater opportunity for quality improvements?
Machinel, Machine2
2.95,3.22
3.45,3.3
3.5,3.34
3.75,3.28
3.48,3.29
3.26,3.25
3.33,3.3
3.2,3.27
3.16,3.38
3.2,3.34
3.22,3.35
3.38,3.19
3.9,3.35
3.36,3.05
3.25,3.36
3.28,3.28
3.2, 3.3
3.22,3.28
2.98,3.3
3.45,3.2
3.7,3.16
3.34,3.33
3.18,
3.35,
3.12,
Transcribed Image Text:Machinel, Machine2 2.95,3.22 3.45,3.3 3.5,3.34 3.75,3.28 3.48,3.29 3.26,3.25 3.33,3.3 3.2,3.27 3.16,3.38 3.2,3.34 3.22,3.35 3.38,3.19 3.9,3.35 3.36,3.05 3.25,3.36 3.28,3.28 3.2, 3.3 3.22,3.28 2.98,3.3 3.45,3.2 3.7,3.16 3.34,3.33 3.18, 3.35, 3.12,
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