DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 10:55:37 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 109/Hill VRSN: W 109-905/Hubbard ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 7,490,953 0.8138 9,204,907 10 242 .080523583 2 A 7,499,128 0.9861 7,604,835 9 132 .060034199 3 A 7,501,727 1.0142 7,396,694 10 88 .040806551 4 A 7,381,944 1.0072 7,329,174 10 51 .012789517 5 D3 16,259,265 0.9641 16,864,708 21 1,078 .276874918 6 F1 1,250,059 0.9884 1,264,730 10 31 .000869694 7 F1 1,255,863 0.9784 1,283,589 7 12 .002426669 8 F1 1,324,726 0.8958 1,478,819 4 6 .010884934 9 L1 740,311 1.0294 719,167 10 40 .005003160 10 L1 816,851 1.0206 800,364 6 11 .001109607 11 L1 964,975 0.9981 966,812 3 4 .000049865 RANDOM TOTALS: 52,485,802 54,913,799 100 1,695 CATG D1 EXCEPTION VALUES: 3,561,639 2,793,447 CATG F1 EXCEPTION VALUES: 845,590 828,438 CATG L1 EXCEPTION VALUES: 532,500 532,500 TOTAL TEST VALUES (4): 57,425,531 59,068,184 MARGIN OF ERROR PERCENT: 7.4732770 MARGIN OF ERROR VALUE: 4,414,329 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 54,653,855 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 57,425,531 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 63,482,513 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 49,008,214 (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
