Data for age (in years) and price (in hundreds of dollars) for a particular brand of car are provided in the accompanying data table. Presume that the assumptions for regression inferences have be met. Complete parts (a) through (f) below using the given data. Click the icon to view the data. a. Obtain a point estimate for the mean price of all 4-year old cars of this brand. Yp 344.17 hundred dollars (Type an integer or decimal rounded to two decimal places as needed.) b. Determine a 95% confidence interval for the mean price of all 4-year old cars of this brand. The 95% confidence interval is from 332.83 to 355.50 hundred dollars. (Type integers or decimals rounded to two decimal places as needed. Use ascending order.) c. Find the predicted price of a 4-year old car of this brand. Yp = 344.17 hundred dollars (Type an integer or decimal rounded to two decimal places as needed.) d. Determine a 95% prediction interval for the price of a 4-year old car of this brand. The 95% prediction interval is from to hundred dollars. (Type integers or decimals rounded to two decimal places as needed. Use ascending order.) C Data for age and price for a particular brand of car x (age) y (price) 6 6 6 2 2 5 291 280 294 427 381 315 355 326 423 322 Print Done D

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Transcribed Image Text:Data for age (in years) and price (in hundreds of dollars) for a particular brand of car are provided in the accompanying data table. Presume that the assumptions for regression inferences have been met. Complete parts (a) through (f) below using the given data. Click the icon to view the data. a. Obtain a point estimate for the mean price of all 4-year old cars of this brand. Ур = 344.17 hundred dollars (Type an integer or decimal rounded to two decimal places as needed.) b. Determine a 95% confidence interval for the mean price of all 4-year old cars of this brand. The 95% confidence interval is from 332.83 to 355.50 hundred dollars. (Type integers or decimals rounded to two decimal places as needed. Use ascending order.) c. Find the predicted price of a 4-year old car of this brand. ŷp = 344.17 hundred dollars (Type an integer or decimal rounded to two decimal places as needed.) d. Determine a 95% prediction interval for the price of a 4-year old car of this brand. The 95% prediction interval is from to hundred dollars. (Type integers or decimals rounded to two decimal places as needed. Use ascending order.) Data for age and price for a particular brand of car x (age) y (price) 6 6 6 2 2 5 4 5 1 4 291 280 294 427 381 315 355 326 423 322 Print Done X

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