For Exercise 12.75, and using the levels of the assembly method factor as the horizontal axis and

Question:

For Exercise 12.75, and using the levels of the assembly method factor as the horizontal axis and €œunits produced€ as the vertical axis, plot and connect the cell means for the cells associated with the €œclassical music€ level of the background music factor. On the same graph, plot and connect the cell means for the cells associated with the €œrock music€ level of the background music factor. Do the plots indicate the presence of interaction between the factor levels? Explain.
In exercise