DATE: 01/30/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 08:11:09 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 228/Trinity VRSN: W 228-903/Trinity ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 32,434,802 0.8707 37,251,409 20 1,573 .126566805 2 A 32,463,749 0.9177 35,375,121 20 732 .068751981 3 A 32,453,982 0.8332 38,951,011 16 407 .030726237 4 A 32,352,321 0.8705 37,165,217 19 224 .015752071 5 C 10,313,605 1.0250 10,062,054 19 3,763 .134556188 6 C 3,470,936 1.1740 2,956,504 12 957 .044663556 7 C 6,202,688 1.4267 4,347,577 14 1,203 .085001058 8 C 6,647,840 0.8938 7,437,727 12 589 .053137318 9 D3 20,229,933 0.9151 22,106,800 21 2,164 .046735668 10 F1 4,265,286 1.1365 3,753,001 7 115 .015450880 11 F1 4,218,399 1.0078 4,185,750 10 40 .053054442 12 F1 4,606,698 0.9015 5,110,037 8 17 .035349951 13 F1 3,867,428 0.8713 4,438,687 5 6 .021939456 14 L1 3,077,087 0.8784 3,503,059 7 113 .099845760 15 L1 3,094,304 1.0622 2,913,109 7 19 .109915223 16 L1 3,166,756 1.0788 2,935,443 3 6 .041701721 RANDOM TOTALS: 202,865,814 222,492,506 200 11,928 CATG J EXCEPTION VALUES: 8,036,863 7,912,336 CATG D1 EXCEPTION VALUES: 14,588,745 13,711,825 CATG L1 EXCEPTION VALUES: 2,922,189 2,812,276 TOTAL TEST VALUES (4): 228,413,611 246,928,943 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 12,346,447 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 228,413,611 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 234,582,496 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 259,275,390 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 200,344,924 (SEE ISD SUMMARY WORKSHEET) SOURCES: (1) SEE STRATIFIED CATEGORY WORKSHEET REPORTS PTS236, PTS430 (2) NUMBER OF PARCELS SAMPLED BY STAFF (3) TOTAL CATEGORY PARCELS FROM STRATIFICATION REPORT APPRAISAL ROLL, OR SELF-REPORT (4) INCLUDES ANY PARCELS IN A, B, C, D3, F1, G1, G2,OR L1 MARKED AS EXCEPTION PROPERTIES (5) UNSTUDIED CATEGORIES AND SUB-CATEGORIES WERE NOT INCLUDED IN THE CONFIDENCE INTERVAL VALUES
