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Plastic containers for motor oil are blow molded in a machine that has two feeders, each feeding into three molding stations. A production engineer is concerned that the weights of the molded plastic motor oil containers at different stations are not uniform and not close to the design weight. To investigate the causes behind this, a random sample of eight containers is taken from each station, and summary statistics were calculated. The table below shows partial ANOVA table from the result of the analysis: Source Degrees of Freedom Sum of Squares Mean Squares F-Test Statistic Treatment (Stations) Error 4.577 0.109 Total 6.771 a. Complete the ANOVA table above. b. Perform hypothesis test at 5% level of significance to determine if the average weight of plastic containers is different across stations. Use 2.42 as critical value