Three different milling machines were being considered for purchase by a manufacturer. Potentially, the company would be purchasing hundreds of these machines, so it wanted to make sure it made the best decision. Initially, ve of each machine were borrowed, and each was randomly assigned to one of 15 technicians (all technicians were similar in skill). Each machine was put through a series of tasks and rated using a standardized test. The higher the score on the test, the better the performance of the machine. The data are: Machine 1 Machine 2 Machine 3 24.5 28.4 28.1 | 23.5 | 3.4.2 | 28.3 26.4 29.5 24.3 27.1 32-2 23.2 29.9 30.1 27.8 a. Perform an ANOVA on this data using 0.05 level of signicance. Remember that the program expects two elds, a Group eld and observation eld. Are there differences between the means by group? b. What specic machines, if any, are different? Which machine would you recommend for purchase