9.3.3

A study was conducted that measured the total brain volume (TBV) (in ) of patients that had schizophrenia and patients that are considered normal.Table #9.3.5 contains the TBV of the normal patients and table #9.3.6 contains the TBV of schizophrenia patients ("SOCR data oct2009," 2013).Is there enough evidence to show that the patients with schizophrenia have less TBV on average than a patient that is considered normal?Test at the 10% level.

Table #9.3.5: Total Brain Volume (in m3) of Normal Patients 1663407 1583940 1431890 1453510 1650348 1366346 1474790 1441636 1432033 1360810 1574808 1688990 1512571 1635918 ___ Table #9.3.6: Total Brain Volume (in m3) of Schizo . hrenia Patients 1331777 1487886 1066075 1499983 1368378 1690182 1387893 1483763 1563593 1363859 1238979 1325525 1648209 1636119 ___ 1578698 1503005 1523045 1410213 1292641 1861991 1588132 1688950 1286638 1354649