Coefficients standard error t stat p-value lower

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Reference no: EM131890153

Length of Light (X) Number of Cars (Y)

10 20

13 19

19 17

25 11

28 9

30 8

SUMMARY OUTPUT

Regression Statistics

Multiple R 0.983787369

R Square 0.967837588

Adjusted R Square 0.959796985

Standard Error 1.060982761

Observations 6

ANOVA

df SS MS F Significance F

Regression 1 135.4972623 135.4973 120.3688 0.000392143

Residual 4 4.50273768 1.125684

Total 5 140

Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0%

Intercept 27.25286212 1.283270327 21.23704 2.91E-05 23.6899325 30.81579 23.68993 30.81579

Length of Light (X) -0.636137382 0.057982106 -10.9713 0.000392 -0.797121516 -0.47515 -0.79712 -0.47515      

Calculate the regression line.

If the length of a light is seven seconds, how many cars would you predict would run the red light?

Reference no: EM131890153

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