5 Continuation Of Lung Pressure A Obtain The Scatterplot Matrix And The Correlation Matrix What Do These Tell Yo 1 (31.27 KiB) Viewed 64 times
5 Continuation Of Lung Pressure A Obtain The Scatterplot Matrix And The Correlation Matrix What Do These Tell Yo 2 (31.31 KiB) Viewed 64 times
**5. (Continuation of Lung pressure) (a) Obtain the scatterplot matrix and the correlation matrix. What do these tell you? (b) Obtain the three variance inflation factors by performing the appropriate regressions among the predictors (do not simply use the VIF option in SAS). Do they indicate that a serious multicollinearity problem exists here? (c) Obtain the leverage values. Can we estimate the average systolic pulmonary arterial pressure (SPAP) for people who have an "emptying rate" of 25, an "ejection rate" of 80, and a blood gas of 557 **6. (Continuation of Lung pressure) (a) Calculate the residual, internally studentized residual, and studentized deleted resid- ual for the 9th observation. (b) Calculate the DFFITS and Cook's distance for the 9th observation. (c) Assess the influence of the 9th observation, and test if it is a y-outlier.
**5. (Continuation of Lung pressure) (a) Obtain the scatterplot matrix and the correlation matrix. What do these tell you? (b) Obtain the three variance inflation factors by performing the appropriate regressions among the predictors (do not simply use the VIF option in SAS). Do they indicate that a serious multicollinearity problem exists here? (c) Obtain the leverage values. Can we estimate the average systolic pulmonary arterial pressure (SPAP) for people who have an "emptying rate" of 25, an "ejection rate" of 80, and a blood gas of 55? **6. (Continuation of Lung pressure) (a) Calculate the residual, internally studentized residual, and studentized deleted resid- ual for the 9th observation. (b) Calculate the DFFITS and Cook's distance for the 9th observation. (c) Assess the influence of the 9th observation, and test if it is a y-outlier.
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!