Mathematics, 24.03.2020 22:28 KrishnaBalaram1235

A car dealer wants to find the relationships of car prices related to 3 variables: "Year", "Mileage" and "Horsepower". Here is the Excel Output results with 30 observations: Coefficient Standard Error t-stat p-value Intercept 2501198.34 931631 2.684 0.012 Year -1205.23 462.62 -2.60 0.014 Mileage -0.850 0.23 -3.62 0.001 Horsepower 56.67 30.63 1.95 0.04 What is the 99% confidence interval for the slope of Horsepower? (a) (56.67-2.75630.63, 56.67+2.75630.63) (b) (56.67-2.77130.63, 56.67+2.77130.63) (c) (56.67-2.76330.63, 56.67+2.76330.63) (d) (56.67-2.77930.63, 56.67+2.77930.63)

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