Question

least - squares ok? the following is a residual plot. was it appropriate to compute the least - squares regression line? explain. residual versus x (response is y) no it was or was not appropriate to compute the least - squares regression line because the residual plot select exhibits does not exhibit a noticeable pattern.

Explanation:

For a least - squares regression line to be appropriate, the residual plot should not show a pattern. If there is no pattern, it indicates that the linear model is a good fit. If there is a pattern, it means the relationship may not be linear and the least - squares regression line may not be appropriate. In the given residual plot, if there is no noticeable pattern, it is appropriate to compute the least - squares regression line.

Answer:

Yes, it was appropriate to compute the least - squares regression line because the residual plot does not exhibit a noticeable pattern.