Question: about a linear regression for y 5 pulse after marching in place and x 5 pulse before marching in place. The figure for this exercise

about a linear regression for y 5 pulse after marching in place and x 5 pulse before marching in place. The figure for this exercise is a plot of residuals versus the pulse before marching for a sample of 40 students. Discuss what the plot indicates about Conditions 1, 2, and 3 for linear regression listed at the beginning of Section 14.5.

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