DATE: 06/22/2005 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:03:55 2004 CONFIDENCE INTERVAL DETAIL REPT: PTS428 091/Grayson VRSN: W 091-908/Van Alstyne ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS _________ ________ ___________ _____________ ___________ ___________ _____________ 1 A 48,141,599 0.9220 52,214,316 16 675 2 A 48,268,991 0.9413 51,279,073 13 392 3 A 48,115,022 1.0203 47,157,720 22 279 4 A 48,100,455 1.0280 46,790,326 13 181 5 D3 48,989,577 0.9677 50,624,757 26 1,922 RANDOM TOTALS: 241,615,644 248,066,192 90 3,449 CATG D1 EXCEPTION VALUES: 4,689,794 3,786,774 TOTAL TEST VALUES (4): 246,305,438 251,852,966 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 12,592,648 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 239,260,318 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 246,305,438 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 264,445,614 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 269,034,475 (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
