Econ103_Lec1

Yes 9 regression 9 of 9 tests one variable at a

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Unformatted text preview: 13158.00 11859.00 31003.00 7 Regression 7 of 9 0 10000 30000 0.00015 0.00000 Fraction 8e−05 4e−05 0e+00 Fraction Example (DistribuTons): 50000 10000 14000 expenses Expenses ($M) 4e−05 0e+00 Fraction 0.00015 0.00000 Fraction 8e−05 revenue Revenue ($M) 6000 0 4000 8000 12000 income Income ($M) 5000 15000 25000 35000 share Share ($M) 8 Regression 500 8000 −500 0 ym$res Residuals 9000 10000 11000 12000 13000 y = 888.41 + 0.344x ˆ 7000 expenses Expenses 8 of 9 20000 25000 30000 35000 8000 9000 10000 11000 12000 13000 FiAed Revenue ym$fit revenue Q: Does the linear regression model seems to work well for these data? Yes! 9 Regression 9 of 9 Tests one variable at a Tme. Tests all variables together. y = 888.41 + 0.34...
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