According to a survey, 63% of men and 67% of women drivers always use seat
belts. Suppose these results were obtained from samples of 1200 men drivers and
1000 women drivers, respectively. Test at 1% significance level that there exists a
difference in proportion between men and women drivers who always use seat belts.
belts. Suppose these results were obtained from samples of 1200 men drivers and
1000 women drivers, respectively. Test at 1% significance level that there exists a
difference in proportion between men and women drivers who always use seat belts.