DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:39:32 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 227/Travis VRSN: W 227-912/Lago Vista ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 150,617,226 0.9205 163,625,449 24 1,239 .034758125 2 A 150,574,066 0.9249 162,800,374 45 839 .024253568 3 A 150,744,259 0.8559 176,123,682 18 574 .052586968 4 A 150,173,190 0.9638 155,813,644 16 231 .021931436 5 C 38,783,438 1.0899 35,584,400 14 5,178 1.296049785 6 C 28,364,894 0.6535 43,404,581 16 1,375 .073925649 7 C 33,669,549 0.8345 40,346,973 27 362 .041692981 8 C 33,435,184 0.9440 35,418,627 12 105 .026731181 9 D3 46,562,490 0.7450 62,499,987 17 583 .337237618 RANDOM TOTALS: 782,924,296 875,617,717 189 10,486 CATG D1 EXCEPTION VALUES: 232,690 296,041 TOTAL TEST VALUES (4): 783,156,986 875,913,758 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 43,795,688 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 783,156,986 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 832,118,070 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 919,709,446 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 866,202,032 (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
