DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:10:30 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 091/Grayson VRSN: W 091-902/Collinsville ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 14,212,011 0.9680 14,681,830 11 283 .019767738 2 A 14,173,664 1.0302 13,758,167 11 180 .008868912 3 A 14,129,965 1.0161 13,906,077 14 132 .005257251 4 A 14,114,538 0.9934 14,208,313 11 79 .007397209 5 D3 26,284,219 1.0244 25,658,160 27 1,169 .081344889 RANDOM TOTALS: 82,914,397 82,212,547 74 1,843 CATG D1 EXCEPTION VALUES: 4,179,372 2,941,985 TOTAL TEST VALUES (4): 87,093,769 85,154,532 MARGIN OF ERROR PERCENT: 5.0000005 MARGIN OF ERROR VALUE: 4,257,727 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 80,896,805 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 87,093,769 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 89,412,259 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 95,889,708 (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
