DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:39:36 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 228/Trinity VRSN: W 228-901/Groveton ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 11,713,986 1.0201 11,483,174 16 731 .205610976 2 A 11,714,627 0.8680 13,496,114 17 405 .057151527 3 A 11,711,947 0.8759 13,371,329 19 256 .051852577 4 A 11,680,021 0.9129 12,794,415 15 132 .039412602 5 C 4,263,018 0.8320 5,123,820 12 1,327 .013835762 6 C 4,078,761 1.0163 4,013,344 13 867 .003448312 7 C 1,969,678 1.0909 1,805,553 11 347 .077058963 8 C 3,391,145 0.9234 3,672,455 12 243 .074049127 9 D3 29,014,771 0.9521 30,474,500 21 5,145 .019540486 RANDOM TOTALS: 89,537,954 96,234,704 136 9,453 CATG J EXCEPTION VALUES: 4,530,280 4,700,486 CATG D1 EXCEPTION VALUES: 40,903,873 37,600,605 TOTAL TEST VALUES (4): 134,972,107 138,535,795 MARGIN OF ERROR PERCENT: 5.0000002 MARGIN OF ERROR VALUE: 6,926,790 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 131,609,005 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 134,972,107 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 145,462,585 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 130,420,768 (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
