Question: =+d. The prediction made in Part (c) involves prediction for an x value that is outside the range of the x values in the sample.

=+d. The prediction made in Part

(c) involves prediction for an x value that is outside the range of the x values in the sample. What assumption must you be willing to make for this to be reasonable? Do you think this assumption is reasonable in this case? Would your answer be the same if the prediction had been for the year 2010 rather than 2000? Explain.

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