Use the following to answer the question(s) below.
A large pharmaceutical company selected a random sample of new hires and obtained their job performance ratings based on their first six months with the company. These data were used to build a multiple regression model to predict the job performance of new hires based on age, GPA and gender (female = 1 and male = 0). The results of the analysis are shown below.
-Based on the F-statistic and associated P-value, we can conclude that at α = 0.05
A) the regression model is not significant overall.
B) all independent variables in the model are significant.
C) the regression model is significant overall.
D) none of the independent variables in the model are significant.
E) only GPA variable in the model is significant.

Question

Use the following to answer the question(s) below.
A large pharmaceutical company selected a random sample of new hires and obtained their job performance ratings based on their first six months with the company. These data were used to build a multiple regression model to predict the job performance of new hires based on age, GPA and gender (female = 1 and male = 0). The results of the analysis are shown below. 
-Based on the F-statistic and associated P-value, we can conclude that at α = 0.05
A) the regression model is not significant overall. 
B) all independent variables in the model are significant. 
C) the regression model is significant overall. 
D) none of the independent variables in the model are significant. 
E) only GPA variable in the model is significant.

Quizplus · Accepted Answer

The null hypothesis for the F-test is that all regression coefficients are equal to zero (i.e. the model is not significant). The calculated F-statistic (17.23) is greater than the critical value (2.60) at α = 0.05, and the associated P-value is less than α, which means we reject the null hypothesis. Therefore, we can conclude that the regression model is significant overall.

Use the Following to Answer the Question(s) Below