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Dep.= Mileage Indep.= Cylinders SUMMARY OUTPUT Regression Statistics Multiple R R Square Adjusted R Square Standard...

Dep.= Mileage Indep.= Cylinders
SUMMARY OUTPUT
Regression Statistics
Multiple R
R Square
Adjusted R Square
Standard Error
Observations 7.0000
ANOVA
Significance
df SS MS F F
Regression 12.4926
Residual
Total 169.4286
Standard
Coefficients Error t Stat P-value Lower 95% Upper 95%
Intercept 38.7857
Cylinders -2.7500
SE CI CI PI PI
Predicted Predicted Lower Upper Lower Upper
x0 Value Value 95% 95% 95% 95%
4.0000 1.9507
6.0000 1.1763

Is there a relationship between a car's gas MILEAGE (in miles/gallon) and its number of CYLINDERS? Use the excel output above to answer the following question.

What is the 95% confidence interval for the mean gas mileage of 6 cylinder cars (without units)?

a.

(19.4073, 25.1641)

b.

(20.5495, 24.0219)

c.

(19.9155, 24.6559)

d.

None of the answers is correct

e.

(19.2614, 25.3100)

Homework Answers

Answer #1


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