DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 10:41:31 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 043/Collin VRSN: W 043-918/Community ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 49,129,110 1.0311 47,647,280 14 680 .038672585 2 A 49,584,915 0.9282 53,420,507 24 369 .036308858 3 A 48,592,875 1.0388 46,777,893 19 269 .004172862 4 A 48,970,683 1.0097 48,500,231 32 200 .004319204 5 C 4,107,122 0.9241 4,444,456 7 403 .042071692 6 C 4,461,022 1.0518 4,241,322 7 187 .008996155 7 C 4,235,657 1.0253 4,131,139 7 120 .040327870 8 C 3,596,735 1.0074 3,570,315 6 42 .001582298 9 D3 67,514,330 0.9487 71,165,100 25 2,296 .043645866 RANDOM TOTALS: 280,192,449 283,898,243 141 4,566 CATG D1 EXCEPTION VALUES: 4,293,254 3,862,856 TOTAL TEST VALUES (4): 284,485,703 287,761,099 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 14,388,055 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 273,373,044 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 284,485,703 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 302,149,154 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 295,315,760 (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
