Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

An analyst used the regression line for the data to the right to predict the ann

ID: 3234575 • Letter: A

Question

An analyst used the regression line for the data to the right to predict the annual salary for a registered nurse with 28 years of experience. Is this a valid prediction? Explain your reasoning. A. No, the prediction is not meaningful because x = 28 is outside the range of the original data set. B. Yes, the prediction is meaningful because x = 28 is not part of the original data set. C. Yes the prediction is meaningful because x = 28 makes sense in the context of the original data set. D. No, the prediction is not meaningful because the regression line may not be used to generate meaningful predictions.

Explanation / Answer

The prediction is doubtful because a straight line does not seem to be a good fit for the data.

So the correct answer is:

(d) No, the prediction is not meaningful because the regression line may not be used to generate meaningful predictions.