(a) Independent observations. Why are the 13 observations independent?(b) Linear
Chapter 0, Problem 24.38(choose chapter or problem)
(a) Independent observations. Why are the 13 observations independent?(b) Linear relationship. A plot of the residuals against the explanatory variable xmagnifies the deviations from the least-squares line. Does the plot show anysystematic deviation from a roughly linear pattern?(c) Spread about the line stays the same. Does your plot in (b) show anysystematic change in spread as x changes?(d) Normal variation about the line. Make a histogram of the residuals. Withonly 13 observations, no clear shape emerges. Do strong skewness or outlierssuggest lack of Normality?
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