For the logistic regression model logit(????) = ????0 + ????1????1 + ????2????2 + … + ???????????????? and a sufficiently large sample, compute a 95% confidence interval for the odds ratio associated with the explanatory variable ????1 when maximum likelihood estimate is

(a) ˆ????1 = −1.12 with ????????(ˆ????1) = 0.27.

(b) ˆ????1 = 2.73 with ????????(ˆ????1) = 0.58.

(c) ˆ????1 = 6.49 with ????????(ˆ????1) = 0.88.