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(Solved) A highway employee performed a regression analysis of the relationship between the number of construction work-zone fatalities and the number of...


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a.How many states were in the sample? 

  Number of states   ___


b.Determine the standard error of estimate. (Round your answer to 2 decimal places.) 

  Standard error of estimate   ___


c.Determine the coefficient of determination. (Round your answer to 2 decimal places.) 

  Coefficient of determination   ___


d.Determine the correlation coefficient. (Round your answer to 2 decimal places.) 

  Coefficient of correlation   ___


e.At the .05 significance level, does the evidence suggest there is a positive association between fatalities and the number unemployed? (Round your t-value to 2 decimal places and critical value to 3 decimal places.)

 

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A highway employee performed a regression analysis of the relationship between the number of
construction work-zone fatalities and the number of unemployed people in a state. The regression equation
is Fatalities = 12.7 + 0.000114 (Unemp). Some additional output is: Predictor Coef SE Coef T P
Constant 12.726 8.115 1.57 0.134
Unemp 0.00011386 000002896 3.93 0.001
Analysis of Variance Source DF SS MS F P
Regression 1 10354 10354 15.46 0.001
Residual Error 18 12054 670 Total 19 22408

 


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