The MS-DRG system is designed so that patients with similar resource utilization are grouped together. A researcher wishes to investigate whether the inpatient mortality rates are different for people with blood pressures versus people without blood pressures. Test the hypothesis that the mortality rates are the same for the two groups below at the 0.05 level. (hint: Standard Normal Critical Value is 1.960) Diagnosis Related Group and name Total number of discharges with Blood pressure 980 without Blood pressure 366 In-hospital deaths 9.70% Z 3.78% PLX 1+ p, XN, (n,+mn,) where p =