Only need to solve problem 4
As an industrial and systems engineer, you\'re testing four different shop floor layouts by measuring the construction time (in minutes) to construct a subassembly for six different work crews. You\'re not interested in the speed of individual work crews (you hope to fix that later with improved work design and training), but you do want to account for the variability associated with the work crew. Test at the 0.01 level of significance whether the four layouts produce different assembly times. As someone making a recommendation as to the layout, what do you do? Crew Layout 1 48.2 49.5 50.7 48.6 47.1 52.4 Layout 2 53.1 52.9 56.8 50.6 51.8 57.2 Layout 3 51.2 50.0 49.9 47.5 49.1 53.5 Layout 4 58.6 60.1 62.4 57.5 55.3 61.7
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