Question: For Exercise 12 75 and using the levels of the assembly
For Exercise 12.75, and using the levels of the assembly method factor as the horizontal axis and “units produced” as the vertical axis, plot and connect the cell means for the cells associated with the “classical music” level of the background music factor. On the same graph, plot and connect the cell means for the cells associated with the “rock music” level of the background music factor. Do the plots indicate the presence of interaction between the factor levels? Explain.
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