is there a difference in the average number of defects recorded from three different machines? To investigate this, defects were recorded for ten days for each machine, and the averages are shown below. An F test showed there was significant evidence of a difference between the average number of defects per day and the three machines. show all work

Machine Ave # defects/day $ cost of new machine

Machine 1 10.1 $450,000

Machine 2 8.4 $460,000

Machine 3 14.6 $452,000

a. Use the Fisher LSD method to determine which machine is different. Use MSE = 5.67 and alpha = 0.05

b. If the company wants to buy a new machine that will save money and produce low defects, which machine should they buy? Why?