DATE: 06/22/2005 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:03:45 2004 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 _________ ________ ___________ _____________ ___________ ___________ _____________ 1 A 12,902,854 0.9679 13,330,772 11 273 2 A 12,971,790 0.9180 14,130,490 10 168 3 A 12,867,261 1.0239 12,566,912 11 123 4 A 12,926,935 0.9549 13,537,475 10 76 5 D3 19,073,359 0.8419 22,655,136 26 1,178 RANDOM TOTALS: 70,742,199 76,220,785 68 1,818 CATG D1 EXCEPTION VALUES: 4,043,645 3,381,146 TOTAL TEST VALUES (4): 74,785,844 79,601,931 MARGIN OF ERROR PERCENT: 5.8606631 MARGIN OF ERROR VALUE: 4,665,201 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 74,785,844 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 74,936,730 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 84,267,132 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 80,562,241 (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
