QUESTION 6 Ftest is significant: O True O False QUESTION 7 The adjusted R2 value is: O 0.87 O 0.93 O 0.84 O 0.57 QUESTION 8 The regression model explains about: O 15percent of the variability of the risk 85percent of variability of blood pressure O 15percent of variability of age O none of the above QUESTIONS Residual plots indicate that Othere is no violation of homoscedasticity assumption there is no violation of collinearity assumption Othere is no violation of normality assumption O None of the above QUESTION 10 Which of the following statements is incorrect for F-test regression results? O From the F-test results, one can say if all the independent variables are significant O From the F-test results, one can say if at least one independent variable is significant O From the F-test results, one can say if the regression model is overall significant Whether the estimated probability of type 1 error is less than 0.05