In a multiple regression equation, two independent variables are considered, and

Question

In a multiple regression equation, two independent variables are considered, and the sample size is 27. The regression coefficients and the standard errors are as follows.

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 0.05 significance level. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)

In a multiple regression equation, two independent variables are considered, and the sample size is 27. The regression coefficients and the standard errors are as follows.

Explanation / Answer

for test

t =b1/sb1 =1.027/0.58 =1.771

and for test

t=b2/sb2 =-2.529/0.70=-3.613

as test variable for first variable is not in critical region

The first variable can be deleted.

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