For Example 16.1 on mental impairment, take the complete Mental data file and randomly select 10 observations for which you act as if the life events values are actually missing. Fit the multiple regression model to the 30 observations with no missing data, and then use multiple imputation to fit the model. Prepare a table like Table 16.1 to compare results for these analyses to those for the model fitted to all 40 observations with no missing data.