DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:10:34 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 091/Grayson VRSN: W 091-905/Howe ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 25,358,259 1.0312 24,591,019 14 456 .018493967 2 A 25,259,924 1.0483 24,096,083 17 286 .009805783 3 A 25,384,079 1.0394 24,421,858 30 205 .012529886 4 A 25,207,444 1.0275 24,532,792 16 132 .004082361 5 D3 33,874,188 1.0788 31,399,878 21 1,350 .025989699 RANDOM TOTALS: 135,083,894 129,041,630 98 2,429 CATG J EXCEPTION VALUES: 6,299,388 6,617,748 CATG D1 EXCEPTION VALUES: 6,582,475 4,688,515 TOTAL TEST VALUES (4): 147,965,757 140,347,893 MARGIN OF ERROR PERCENT: 5.0000002 MARGIN OF ERROR VALUE: 7,017,395 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 133,330,498 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 147,365,288 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 147,965,757 (OUTSIDE CONFIDENCE INTERVAL) VALUE ASSIGNED (6): 149,761,596 (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
