DATE: 02/10/2005 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 12:21:20 2004 CONFIDENCE INTERVAL DETAIL REPT: PTS428 220/Tarrant VRSN: P 220-906/Grapevine-Colleyville ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS _________ ________ ___________ _____________ ___________ ___________ _____________ 1 A 1,017,974,426 1.0053 1,012,607,606 50 6,508 2 A 1,018,091,378 1.0114 1,006,615,956 48 4,469 3 A 1,016,323,454 1.0149 1,001,402,556 50 3,141 4 A 1,017,283,382 1.0165 1,000,770,666 50 1,833 5 B 113,761,871 0.9755 116,619,037 15 816 6 B 119,842,567 0.9658 124,086,319 5 16 7 B 139,585,227 0.9748 143,193,708 8 9 8 F1 424,811,105 0.7476 568,233,153 11 402 9 F1 427,483,743 0.8453 505,718,376 9 117 10 F1 440,813,981 0.9478 465,091,771 9 39 11 L1 613,105,844 0.9711 631,351,914 7 359 12 L1 610,448,648 1.0032 608,501,443 6 17 RANDOM TOTALS: 6,959,525,626 7,184,192,505 268 17,726 CATG D1 EXCEPTION VALUES: 129,634 124,953 CATG B EXCEPTION VALUES: 72,704,033 71,958,000 CATG F1 EXCEPTION VALUES: 456,043,137 478,127,584 CATG L1 EXCEPTION VALUES: 1,136,689,995 1,122,693,635 TOTAL TEST VALUES (4): 8,625,092,425 8,857,096,677 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 442,854,834 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 8,414,241,843 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 8,625,092,425 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 9,299,951,511 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 8,268,377,141 (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
