Question: Following is a residual plot produced by MINITAB. Was it appropriate to compute the least-squares regression line? Explain. 50 50 Residuals Versus x 40 40

Following is a residual plot produced by MINITAB. Was it appropriate to compute the least-squares regression line? Explain. 50 50 Residuals Versus x 40 40 30 20 20 Residual 10

50 50 Residuals Versus x 40 40 30 20 20 Residual 10 10 0 -10 -20 20 + -3 -2 2 3 X + 5

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