Use the following information to answer the question. A high school girls cross country coach performs a regression to predict the finish times of runners in the 10k event from the number of minutes of training in the previous week. The output is shown below. Assume that the conditions of the linear regression model hold.

-The coach wants to predict the finish time of his top runner who trained for 145 minutes the previous week. Should the coach use a confidence interval or a prediction interval?
A)Prediction Interval
B)Confidence Interval

Question

Use the following information to answer the question. A high school girls cross country coach performs a regression to predict the finish times of runners in the 10k event from the number of minutes of training in the previous week. The output is shown below. Assume that the conditions of the linear regression model hold.
 
-The coach wants to predict the finish time of his top runner who trained for 145 minutes the previous week. Should the coach use a confidence interval or a prediction interval?
A)Prediction Interval 
B)Confidence Interval

Quizplus · Accepted Answer

A prediction interval should be used because it estimates the range in which a single new observation (the runner's finish time) is expected to fall, considering the variability in individual performances.

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