In a january 2013 safety announcement, the food and drug administration warned drug manufacturers that the recommended dose of the widely prescribed insomnia drug zolpidem should be halved for women. the warning came after pharmacokinetic trials found that 38 of 250 women and 8 of 250 men who had taken the recommended dose of zolpidem still had enough drug in their blood 8 hours later to cause impairment.

(a) what are the odds of impairment 8 hours after dosing for women and for men? use this information to compute the equation of the logistic regression model in the form l=b0+b1x if the indicator variable x=0 for men and x=1 for women. (enter the coefficients rounded to four decimal places.)

b0=

b1=

b) minitab provides the standard error of the slope, seb1=0.40022. use this information to compute a 95% confidence interval for the slope of the logistic regression model. then compute a 95% confidence interval for the odds ratio for impairment 8 hours after dosing. (enter your answers rounded to three decimal places.)

lower bound:

upper bound: