(b)Using the data in the above tables, construct a90% confidence intervalfor the difference in TBV of normal patients and patients with Schizophrenia.Be sure to check the assumptions before using the appropriate methodology.Interpret the interval.

Table A: Total Brain Volume (in mm3) of Normal Patients ______ Table B: Total Brain Volume (in mm') of Schizophrenia Patients 1331777 1487886 1066075 1297327 1499983 1861991 1368378 1476891 1443775 1337827 1658258 1588132 1563593 1317885 1420249 1363859 1238979 1286638