DATE: 01/27/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 10:59:07 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 031/Cameron VRSN: W 031-909/Point Isabel ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 413,251,783 0.8875 465,635,812 51 3,645 .063256872 2 A 412,928,573 0.9075 455,017,711 48 1,774 .041786654 3 A 413,265,497 0.9172 450,572,936 52 1,228 .022765048 4 A 412,864,997 0.8978 459,862,995 45 656 .026949894 5 C 48,744,023 0.8235 59,191,285 7 1,064 .306113947 6 C 48,713,114 1.0066 48,393,715 7 517 .013027253 7 C 48,667,816 1.0008 48,628,913 7 324 .010834957 8 C 48,388,988 0.9478 51,054,007 7 101 .006555385 9 F1 55,109,530 0.8982 61,355,522 9 226 .073311894 10 F1 55,814,952 0.9369 59,574,076 7 76 .009314458 11 F1 57,509,445 0.9452 60,843,679 7 34 .016161220 12 F1 51,470,145 0.9568 53,794,048 4 8 .000302178 RANDOM TOTALS: 2,066,728,863 2,273,924,699 251 9,653 CATG D1 EXCEPTION VALUES: 1,346,700 1,178,737 TOTAL TEST VALUES (4): 2,068,075,563 2,275,103,436 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 113,755,172 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 2,068,075,563 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 2,161,348,264 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 2,388,858,608 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 2,250,024,589 (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
