DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:37:35 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 220/Tarrant VRSN: W 220-901/Arlington ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 2,366,718,233 1.0036 2,358,228,610 75 25,591 .008151640 2 A 2,361,414,469 0.9920 2,380,458,134 74 19,371 .003565344 3 A 2,365,642,463 1.0022 2,360,449,474 82 14,655 .003327635 4 A 2,358,213,854 0.9993 2,359,865,760 68 8,898 .004364645 5 B 426,082,685 0.9815 434,113,790 7 2,608 .000828950 6 B 429,891,653 1.0043 428,051,034 9 99 .007148048 7 B 419,749,859 0.9502 441,748,957 7 48 .005018438 8 B 422,990,934 0.9797 431,755,572 7 20 .000819720 9 F1 1,012,563,320 0.9786 1,034,706,029 25 1,614 .021113322 10 F1 1,012,270,977 1.0060 1,006,233,576 9 482 .091369505 11 F1 1,016,588,613 0.9580 1,061,157,216 9 183 .010930324 12 F1 1,005,946,105 0.8836 1,138,463,224 8 58 .065809336 13 L1 567,601,925 1.0772 526,923,436 7 2,584 .028784231 14 L1 568,372,318 1.0308 551,389,521 7 357 .002246603 15 L1 573,056,213 1.0349 553,731,001 7 113 .003300451 16 L1 558,785,487 0.9954 561,367,779 7 27 .000350869 RANDOM TOTALS: 17,465,889,108 17,628,643,113 408 76,708 CATG D1 EXCEPTION VALUES: 109,695 159,205 TOTAL TEST VALUES (4): 17,465,998,803 17,628,802,318 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 881,440,116 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 16,747,362,202 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 17,465,998,803 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 18,510,242,434 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 18,265,617,135 (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
