DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:37:43 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 220/Tarrant VRSN: W 220-905/Fort Worth ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 2,758,184,743 0.9899 2,786,326,642 71 46,528 .007422414 2 A 2,745,448,781 1.0095 2,719,612,463 78 25,894 .006236315 3 A 2,748,480,587 1.0108 2,719,114,154 73 15,810 .007584779 4 A 2,750,515,026 1.0063 2,733,295,266 77 6,339 .006334582 5 B 369,970,227 1.1301 327,378,309 8 3,428 .013156982 6 B 371,146,804 1.0145 365,842,094 19 256 .008433765 7 B 370,235,533 1.0563 350,502,256 7 67 .007053548 8 B 367,549,168 0.9240 397,780,485 7 25 .043507511 9 C 78,259,331 0.5639 138,782,286 12 7,519 .363892322 10 C 78,461,958 0.8226 95,382,881 7 1,464 .460680475 11 C 78,085,690 0.8843 88,302,262 12 485 .100736018 12 C 78,201,340 1.0462 74,747,983 7 145 .008173936 13 F1 1,125,939,297 0.9300 1,210,687,416 22 3,877 .057650630 14 F1 1,129,127,054 0.8676 1,301,437,361 17 805 .032098902 15 F1 1,125,638,068 0.9080 1,239,689,502 15 209 .034693706 16 F1 1,122,414,291 0.9894 1,134,439,348 17 44 .006004461 17 L1 608,154,346 1.0946 555,595,054 7 3,611 .023909832 18 L1 607,879,965 0.9699 626,744,989 9 539 .045867160 19 L1 615,086,716 1.0647 577,708,947 7 152 .017769179 20 L1 599,808,749 1.0863 552,157,552 7 31 .027827532 RANDOM TOTALS: 19,728,587,674 19,995,527,250 479 117,228 CATG D1 EXCEPTION VALUES: 1,467,405 1,430,520 TOTAL TEST VALUES (4): 19,730,055,079 19,996,957,770 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 999,847,889 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 18,997,109,881 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 19,730,055,079 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 20,996,805,659 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 19,337,798,123 (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
