9.3.3
A study was conducted that measured the total brain volume (TBV)(in mm3) of patients that had schizophrenia and patients that areconsidered normal. Table #9.3.5 contains the TBV of the normalpatients and table #9.3.6 contains the TBV of schizophreniapatients (\"SOCR data oct2009,\" 2013). Is there enough evidence toshow that the patients with schizophrenia have less TBV on averagethan a patient that is considered normal? Test at the 10%level.
Table #9.3.5: Total BrainVolume (in mm3) of Normal Patients
1663407 | 1583940 | 1299470 | 1535137 | 1431890 | 1578698 |
1453510 | 1650348 | 1288971 | 1366346 | 1326402 | 1503005 |
1474790 | 1317156 | 1441045 | 1463498 | 1650207 | 1523045 |
1441636 | 1432033 | 1420416 | 1480171 | 1360810 | 1410213 |
1574808 | 1502702 | 1203344 | 1319737 | 1688990 | 1292641 |
1512571 | 1635918 | | | | |
Table #9.3.6: Total BrainVolume (in mm3) of Schizophrenia Patients
1331777 | 1487886 | 1066075 | 1297327 | 1499983 | 1861991 |
1368378 | 1476891 | 1443775 | 1337827 | 1658258 | 1588132 |
1690182 | 1569413 | 1177002 | 1387893 | 1483763 | 1688950 |
1563593 | 1317885 | 1420249 | 1363859 | 1238979 | 1286638 |
1325525 | 1588573 | 1476254 | 1648209 | 1354054 | 1354649 |
1636119 | | | | | |
9.3.4
A study was conducted that measured the total brain volume (TBV)(in mm3) of patients that had schizophrenia and patients that areconsidered normal. Table #9.3.5 contains the TBV of the normalpatients and table #9.3.6 contains the TBV of schizophreniapatients (\"SOCR data oct2009,\" 2013). Compute a 90% confidenceinterval for the difference in TBV of normal patients and patientswith Schizophrenia.
9.3.8
The number of cell phones per 100 residents in countries inEurope is given in table #9.3.9 for the year 2010. The number ofcell phones per 100 residents in countries of the Americas is givenin table #9.3.10 also for the year 2010 (\"Population referencebureau,\" 2013). Find the 98% confidence interval for the differentin mean number of cell phones per 100 residents in Europe and theAmericas.
Table #9.3.9: Number of CellPhones per 100 Residents in Europe
100 | 76 | 100 | 130 | 75 | 84 |
112 | 84 | 138 | 133 | 118 | 134 |
126 | 188 | 129 | 93 | 64 | 128 |
124 | 122 | 109 | 121 | 127 | 152 |
96 | 63 | 99 | 95 | 151 | 147 |
123 | 95 | 67 | 67 | 118 | 125 |
110 | 115 | 140 | 115 | 141 | 77 |
98 | 102 | 102 | 112 | 118 | 118 |
54 | 23 | 121 | 126 | 47 | |
Table #9.3.10: Number of CellPhones per 100 Residents in the Americas
158 | 117 | 106 | 159 | 53 | 50 |
78 | 66 | 88 | 92 | 42 | 3 |
150 | 72 | 86 | 113 | 50 | 58 |
70 | 109 | 37 | 32 | 85 | 101 |
75 | 69 | 55 | 115 | 95 | 73 |
86 | 157 | 100 | 119 | 81 | 113 |
87 | 105 | 96 | | | |
