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Making Predictions Using the Model Make predictions using the regression model. Address the following questions in your analysis: What is the predicted fuel efficiency (miles per gallon) for a car that has a rear axle ratio of 3.15 and a horsepower of 120? Suppose that this car achieves an average of 20.5 miles per gallon. What is the residual for this observation? What is the 95% prediction interval for the car identified in the previous question? Interpret this interval. What is the 95% confidence interval for the car identified in the previous question? Interpret this interval. Why is the prediction interval wider than the confidence interval?

Making Predictions Using the Model Make predictions using the regression model. Address the following questions in your analysis: What is the predicted fuel efficiency (miles per gallon) for a car that has a rear axle ratio of 3.15 and a horsepower of 120? Suppose that this car achieves an average of 20.5 miles per gallon. What is the residual for this observation? What is the 95% prediction interval for the car identified in the previous question? Interpret this interval. What is the 95% confidence interval for the car identified in the previous question? Interpret this interval. Why is the prediction interval wider than the confidence interval?

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Making Predictions Using the Model Make predictions using the regression model. Address the following questions in your analysis: What is the predicted fuel efficiency (miles per gallon) for a car that has a rear axle ratio of 3.15 and a horsepower of 120? Suppose that this car achieves an average of 20.5 miles per gallon. What is the residual for this observation? What is the 95% prediction interval for the car identified in the previous question? Interpret this interval. What is the 95% confidence interval for the car identified in the previous question? Interpret this interval. Why is the prediction interval wider than the confidence interval?
Transcribed Image Text:Making Predictions Using the Model Make predictions using the regression model. Address the following questions in your analysis: What is the predicted fuel efficiency (miles per gallon) for a car that has a rear axle ratio of 3.15 and a horsepower of 120? Suppose that this car achieves an average of 20.5 miles per gallon. What is the residual for this observation? What is the 95% prediction interval for the car identified in the previous question? Interpret this interval. What is the 95% confidence interval for the car identified in the previous question? Interpret this interval. Why is the prediction interval wider than the confidence interval?
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