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Author Question: In a comprehensive road test on new car models, one variable measured is the time it takes the car ... (Read 74 times)

tiara099

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on: Feb 14, 2020

Question 1

Consider the following pairs of observations:

x23556
y1.31.62.12.22.7

Find and interpret the value of the coefficient of determination.

Question 2

In a comprehensive road test on new car models, one variable measured is the time it takes the car to accelerate from 0 to 60 miles per hour. To model acceleration time, a regression analysis is conducted on a random sample of 129 new cars.

TIME60:y = Elapsed time (in seconds) from 0 mph to 60 mph
MAXx = Maximum speed attained (miles per hour)

The simple linear model E(y) = β0 + β1x was fit to the data. Computer printouts for the analysis are given below:

NWEIGHTED LEAST SQUARES LINEAR REGRESSION OF TIME60







CASES INCLUDED 129   MISSING CASES 0

Approximately what percentage of the sample variation in acceleration time can be explained by the simple linear model?
◦ 70%
◦ 8%
◦ -17%
◦ 0%
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by tiara099 on Feb 14, 2020

briseldagonzales

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Reply #1 on: Feb 14, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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tiara099

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Reply 2 on: Feb 14, 2020
Great answer, keep it coming :)

Joy Chen

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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