DATE: 06/22/2005 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:08:36 2004 CONFIDENCE INTERVAL DETAIL REPT: PTS428 113/Houston VRSN: W 113-901/Crockett ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS _________ ________ ___________ _____________ ___________ ___________ _____________ 1 A 27,076,874 0.9675 27,986,433 24 971 2 A 26,950,353 0.9253 29,126,070 26 601 3 A 27,079,513 0.9525 28,429,935 35 399 4 A 26,971,652 0.9820 27,466,041 16 201 5 D3 51,303,330 0.9205 55,734,199 27 3,527 6 F1 10,768,039 0.9954 10,817,801 7 177 7 F1 11,126,566 1.0576 10,520,581 7 52 8 F1 11,264,020 0.8189 13,755,062 5 14 9 F1 9,874,949 1.0956 9,013,279 3 5 10 L1 7,231,101 1.3817 5,233,481 7 197 11 L1 7,266,565 1.0511 6,913,296 8 41 12 L1 7,052,728 1.2891 5,471,048 5 14 RANDOM TOTALS: 223,965,690 230,467,226 170 6,199 CATG J EXCEPTION VALUES: 11,529,724 11,890,937 CATG D1 EXCEPTION VALUES: 16,777,890 14,072,536 CATG L1 EXCEPTION VALUES: 6,191,480 6,287,897 TOTAL TEST VALUES (4): 258,464,784 262,718,596 MARGIN OF ERROR PERCENT: 5.0000001 MARGIN OF ERROR VALUE: 13,135,930 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 249,582,666 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 258,464,784 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 275,854,526 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 248,722,581 (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
