Concept explainers
To explain do you expect your prediction to be too high or too low.
Answer to Problem 1.4CYU
Our predictions will be too low.
Explanation of Solution
Since from the previous question we get that,
It is given in the question that variable x be the number of the years since
And the slope and the constant of the regression line is give in the previous question as:
Thus, the regression line is as:
Thus, evaluating the regression line we will get that,
Thus, based on the residual plot given in this question we can say that the points are first increasing and then it starts decreasing in the year ahead. Thus, in the year
Chapter 12 Solutions
The Practice of Statistics for AP - 4th Edition
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