DATE: 01/30/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 08:11:27 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 236/Walker VRSN: W 236-902/Huntsville ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 175,498,575 0.7890 222,431,654 8 3,418 .033405827 2 A 175,505,166 0.9078 193,330,212 12 1,775 .008555996 3 A 175,460,175 0.9399 186,679,620 11 1,252 .009758652 4 A 175,372,186 0.9328 188,006,203 8 811 .011259512 5 B 24,239,402 0.8128 29,822,099 8 94 .020180800 6 B 25,908,948 0.7775 33,323,406 5 17 .041597608 7 B 25,178,150 0.8395 29,991,840 4 7 .007487467 8 B 21,566,666 0.7442 28,979,664 2 3 .106913243 9 D3 167,462,741 0.8244 203,132,874 16 7,303 .024365555 10 F1 44,027,419 0.9019 48,816,298 7 310 .013583537 11 F1 44,162,121 0.9187 48,070,231 6 88 .006712916 12 F1 45,242,386 1.0008 45,206,221 6 35 .011030163 13 F1 41,956,885 0.9322 45,008,458 4 10 .009678825 14 L1 30,855,670 1.0077 30,619,897 7 336 .199402556 15 L1 31,613,011 1.2223 25,863,545 6 58 .061281230 16 L1 30,146,027 1.1273 26,741,796 6 15 .050036798 RANDOM TOTALS: 1,234,195,528 1,386,024,018 116 15,532 CATG D1 EXCEPTION VALUES: 41,682,431 38,512,758 CATG L1 EXCEPTION VALUES: 38,379,560 30,928,491 TOTAL TEST VALUES (4): 1,314,257,519 1,455,465,267 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 72,773,263 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 1,314,257,519 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 1,382,692,004 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 1,528,238,530 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 1,278,136,064 (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
