DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:44:13 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 253/Zapata VRSN: W 253-901/Zapata ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 161,702,500 0.9504 170,141,519 43 5,164 .043987167 2 D3 13,697,972 0.8965 15,279,389 11 3,830 .087801669 3 G1 474,240,886 0.9558 496,171,674 7 752 .117659551 4 G1 475,268,216 1.0035 473,610,579 7 279 .010620255 5 G1 474,999,556 1.0211 465,184,170 7 153 .002526999 6 G1 472,281,573 0.9825 480,693,713 6 63 .007795102 RANDOM TOTALS: 2,072,190,703 2,101,081,044 81 10,241 CATG D1 EXCEPTION VALUES: 25,508,883 53,305,578 TOTAL TEST VALUES (4): 2,097,699,586 2,154,386,622 MARGIN OF ERROR PERCENT: 6.4053503 MARGIN OF ERROR VALUE: 137,996,009 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 2,016,390,613 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 2,097,699,586 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 2,292,382,631 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 2,358,257,422 (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
