what is the SAS code and format? 4. a. Fit a logistic regression model using retirement status (retire), age (age), health status (hstatusg, coded 1 for good, very good or excellent and 0 otherwise), household income (hhincome), education in years (eduyears), the indicator for married (married), and the indicator of hispanic ethnicity (hisp) as predictors and ins as the outcome. Which predictors have statistically significant coefficients