A study was conducted that measured the total brain volume (TBV) (in mm²) of patients that had schizophrenia and patients that are considered normal. The first table contains the TBV of the non- schizophrenic patients and the second table contains the TBV of schizophrenia patients. Compute a 99% confidence interval for the difference in TBV of non-schizophrenic patients and patients with Schizophrenia. Prior studies say nothing about the equality of variances. Round to the nearest whole number. Total Brain Volume (in mm³) of Non-Schizophrenic Patients 1487997 1611227 1527495 1249097 1309037 1546157 1535216 1303042 1363737 1292976 1558222 1474289 1516312 1567897 1532468 1381812 1409812 1297379 1400278 1724615 1352710 1620645 1446958 1540957 1318121 1460479 1602502 1353583 1541397 1373993 1398046 1282528 1455977 1438274 Total Brain Volume (in mm³) of Schizophrenia Patients 1653156 1037545 1063003 1287704 1262253 1280706 1451005 1283081 1214368 1536994 1082431 1372061 1096716 1699683 1314598 1163296 1174315 1550145 1380749 1436316 1379951 1598317 1226466 1828168 1165244 1570987 1063383 1416276 1629315 With 99 schizophrenic patients and patients with Schizophrenia is between mm³. O % confidence, it can be said that the difference in mean TBV of non- mm³ and
A study was conducted that measured the total brain volume (TBV) (in mm²) of patients that had schizophrenia and patients that are considered normal. The first table contains the TBV of the non- schizophrenic patients and the second table contains the TBV of schizophrenia patients. Compute a 99% confidence interval for the difference in TBV of non-schizophrenic patients and patients with Schizophrenia. Prior studies say nothing about the equality of variances. Round to the nearest whole number. Total Brain Volume (in mm³) of Non-Schizophrenic Patients 1487997 1611227 1527495 1249097 1309037 1546157 1535216 1303042 1363737 1292976 1558222 1474289 1516312 1567897 1532468 1381812 1409812 1297379 1400278 1724615 1352710 1620645 1446958 1540957 1318121 1460479 1602502 1353583 1541397 1373993 1398046 1282528 1455977 1438274 Total Brain Volume (in mm³) of Schizophrenia Patients 1653156 1037545 1063003 1287704 1262253 1280706 1451005 1283081 1214368 1536994 1082431 1372061 1096716 1699683 1314598 1163296 1174315 1550145 1380749 1436316 1379951 1598317 1226466 1828168 1165244 1570987 1063383 1416276 1629315 With 99 schizophrenic patients and patients with Schizophrenia is between mm³. O % confidence, it can be said that the difference in mean TBV of non- mm³ and
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Transcribed Image Text:A study was conducted that measured the total brain volume (TBV) (in mm³) of patients that had
schizophrenia and patients that are considered normal. The first table contains the TBV of the non-
schizophrenic patients and the second table contains the TBV of schizophrenia patients. Compute a 99%
confidence interval for the difference in TBV of non-schizophrenic patients and patients with
Schizophrenia. Prior studies say nothing about the equality of variances. Round to the nearest whole
number.
Total Brain Volume (in mm³) of Non-Schizophrenic Patients
1487997 1611227 1527495 1409812 1297379 1400278
1249097 1309037 1546157 1352710 1620645 1446958
1535216 1303042 1363737 1318121 1460479 1602502
1292976 1558222 1474289 1541397 1373993 1398046
1516312 1567897 1532468 1381812
Total Brain Volume (in mm³) of Schizophrenia Patients
1438274
1653156 1037545 1063003 1287704 1262253 1455977
1280706 1451005 1283081 1214368 1536994 1082431 1372061
1096716 1699683 1314598 1163296 1174315 1550145 1380749
1436316 1379951 1598317 1226466 1828168 1165244 1570987
1063383 1416276 1629315
With 99
1724615
1540957
1353583
1282528
O % confidence, it can be said that the difference in mean TBV of non-
mm³ and
schizophrenic patients and patients with Schizophrenia is between
mm³.
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VIEWStep 2: Calculate mean and sample standard deviation of the Non-schizophrenic patients
VIEWStep 3: Calculate mean and sample standard deviation for the schizophrenic patients
VIEWStep 4: Calculate level of significance and the degree of freedom
VIEWStep 5: Calculate t-value
VIEWStep 6: Calculate confidence interval
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