Question

Suppose you fit a straight-line regression model to y = amount of time sleeping per day and x = age of subject. Values of y in the sample tend to be quite large for young children and for elderly people, and they tend to be lower for other people. Sketch what you would expect to observe for (a) The scatterplot of x and y and
(b) A plot of the residuals against the values of age.


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  • CreatedSeptember 11, 2015
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