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. Conduct a statistical test to determine whether there is a significant difference between the variances in the bag weights for two machines. Use a .05 level of significance. What is your conclusion? Which machine, if either, provides the greater opportunity for quality improvements?

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Machinel 2.95 3.45 3.50 3.753.48 3.26 3.33 3.20 3.16 3.203.22 3.38 3.90 3.36 3.25 3.28 3.20 3.22 2.98 3.45 3.70 3.34 3.18 3.35 3.12 Machine2 3.22 3.30 3.343.283.293.25 3.30 3.27 3.38 3.343.353.19 3.35 3.05 3.36 3.28 3.30 3.28 3.30 3.20 3.16 3.33