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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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pinkkurage pinkkurage
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A year ago
Ten used cars from a rental fleet are randomly selected. Each vehicle’s annual maintenance cost from the previous calendar year (y) is recorded as well as the vehicle’s current mileage (x). A simple linear regression is conducted on the data.

​

The regression equation is

Maint = 297 + 0.00636 Miles

​

Predictor    Coef SE       Coef       T       P

Constant       296.6      162.4    1.83   0.105

Miles       0.006357   0.003121    2.04   0.076

​

S = 279.775 R-Sq = 34.1% R-Sq(adj) = 25.9%

​

Analysis of Variance

​

Source            DF       SS      MS      F       P

Regression         1   324727  324727   4.15   0.076

Residual Error     8   626192   78274

Total              9   950919

 

What is an 80% prediction interval for the annual repair cost of a used vehicle with 40,000 miles? (Given: Sxx= 8,036,677,024 and\(\style{font-family:Times New Roman;}{\overline x}\)= $43,627.700.)



▸

$(144.72, 956.96)



▸

$(140.67, 961.01)



▸

$(426.25, 675.43)



▸

$(427.48, 674.20)

Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
Author:
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ladwerladwer
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A year ago
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pinkkurage Author
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A year ago
Good timing, thanks!
mmmm_dat_userna
wrote...

Yesterday
Brilliant ツ
jmelchor77
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2 hours ago
Thanks
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