A human resources benefits manager is trying to ascertain different employee preferences among healthcare plans. One plan (low dental/vision) has a low copay overall but has higher out-ofpocket costs for vision and dental. Another plan (high dental/vision) has higher copayments overall but lower out-of-pocket costs for vision and dental. Based on the data in Table 9.21, determine if there are significant differences in coverage preference based on salary level.

Table 9.21 Health Care Plan by Compensation Category Hourly Salaried Low dental/vision 89 64 High dental/vision 53 55