DATE: 01/26/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 10:20:31 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 020/Brazoria VRSN: W 020-907/Columbia-Brazoria ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 111,285,159 0.9665 115,142,430 22 2,109 .001186352 2 A 111,327,950 0.9740 114,299,743 31 1,281 .001286595 3 A 111,256,091 0.9993 111,334,025 34 906 .017104425 4 A 111,241,515 0.9656 115,204,552 13 560 .001029452 5 D3 50,271,410 0.9862 50,974,863 11 3,481 .021044383 6 F1 9,942,834 0.8571 11,600,553 7 185 .025016610 7 F1 9,894,109 0.8685 11,392,181 6 71 .059818629 8 F1 9,927,634 0.8477 11,711,259 5 25 .014097316 9 F1 9,796,852 0.8876 11,037,463 4 9 .004945894 10 G1 26,960,594 0.9956 27,079,745 8 32 .032425330 RANDOM TOTALS: 561,904,148 579,776,814 141 8,659 CATG J EXCEPTION VALUES: 33,948,857 37,999,240 CATG D1 EXCEPTION VALUES: 9,755,290 9,189,696 TOTAL TEST VALUES (4): 605,608,295 626,965,750 MARGIN OF ERROR PERCENT: 5.0000001 MARGIN OF ERROR VALUE: 31,348,288 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 595,617,462 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 605,608,295 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 658,314,038 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 612,929,695 (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
