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Mathematics, 02.03.2020 23:18 aashya16
In a multiple regression equation, two independent variables are considered, and the sample size is 30. The regression coefficients and the standard errors are as follows.
b1 = 2.815 Sb1 = 0.75
b2 = -1.249 Sb2 = 0.41
Conduct a test of hypothesis to determine whether either independent variable has a coefficient equal to zero. Would you consider deleting either variable from the regression equation? Use the .05 significance level. (Round your answers to 3 decimal places. Negative amounts should be indicated by a minus sign.)
H0: β1 = 0 H0: β2 = 0
H1: β1 ≠ 0 H1: β2 ≠ 0
H0 is rejected if t < -2.042 or t > 2.042
t for b1 coefficient =
t for b2 coefficient =
(Click to select)Neither the first nor secondThe first and secondThe second variable can be deleted.
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