The following output was generated using statistical software.    Coefficients Standard Error t Stat P-value Intercept 50.65625 1.891010513 26.79 0.13529 Speed -0.353125 0.036201476 -9.754 0.00019   1. List the prediction equation for gas mileage based on speed. 2. What gas mileage is expected for a vehicle traveling 80 mph? 3. Is speed a good predictor of gas mileage based on the output? Explain your answer

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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The following output was generated using statistical software. 

 

Coefficients

Standard Error

t Stat

P-value

Intercept

50.65625

1.891010513

26.79

0.13529

Speed

-0.353125

0.036201476

-9.754

0.00019

 

1. List the prediction equation for gas mileage based on speed.

2. What gas mileage is expected for a vehicle traveling 80 mph?

3. Is speed a good predictor of gas mileage based on the output? Explain your answer.

Expert Solution
Step 1

Given that 

The following output was generated using statistical software. 

 

Coefficients

Standard Error

t Stat

P-value

Intercept

50.65625

1.891010513

26.79

0.13529

Speed

-0.353125

0.036201476

-9.754

0.00019

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