Which one of the following concerns with the assumptions for simple linear regression is NOT indicated by the plots? There are doubts about the assumption of independence of the random errors. The amount of variability in the residuals appears to depend on x. The scatter about the trend increases as x increases. There are doubts about the Normality of the errors. The relationship between x and y does not appear to be linear.
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If there are doubts about the assumption of independence of the random errors, this would be indicated by a plot showing a pattern in the residuals, such as a trend or cycle. Show more…
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