DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:23:25 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 241/Wharton VRSN: W 241-903/El Campo ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 69,637,293 0.8525 81,685,974 15 1,914 .086351758 2 A 69,581,796 0.8741 79,603,931 11 994 .025633562 3 A 69,563,098 0.8291 83,901,939 15 653 .070538584 4 A 69,554,923 0.9531 72,977,571 11 379 .013194263 5 D3 56,378,165 0.9399 59,983,152 24 6,320 .026667859 6 F1 15,602,489 0.7917 19,707,577 9 271 .075994302 7 F1 15,553,578 0.7067 22,008,742 9 97 .104454705 8 F1 15,612,972 0.7981 19,562,676 6 29 .065165214 9 G1 62,873,533 0.9750 64,485,675 7 95 .012428314 10 G1 63,464,765 1.0607 59,832,908 6 33 .055561908 11 G1 61,258,204 0.9856 62,153,210 4 10 .018022640 12 G1 59,657,030 0.9745 61,218,091 3 4 .004437085 13 L1 12,165,645 1.0527 11,556,612 8 242 .008167137 14 L1 12,273,858 0.9701 12,652,158 6 59 .019422946 15 L1 11,889,885 0.9554 12,444,929 5 21 .006119753 RANDOM TOTALS: 665,067,234 723,775,145 139 11,121 CATG J EXCEPTION VALUES: 29,805,871 29,666,136 CATG D1 EXCEPTION VALUES: 64,462,100 53,064,146 CATG F1 EXCEPTION VALUES: 15,035,326 15,699,477 CATG L1 EXCEPTION VALUES: 11,098,270 12,391,962 TOTAL TEST VALUES (4): 785,468,801 834,596,866 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 41,729,843 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 785,468,801 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 792,867,023 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 876,326,709 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 825,667,530 (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
