DATE: 06/22/2005 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 10:59:09 2004 CONFIDENCE INTERVAL DETAIL REPT: PTS428 057/Dallas VRSN: W 057-912/Irving ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS _________ ________ ___________ _____________ ___________ ___________ _____________ 1 A 854,488,100 0.9350 913,891,016 49 9,691 2 A 854,453,230 0.9766 874,926,510 49 7,689 3 A 854,290,149 0.9901 862,832,188 50 5,961 4 A 854,407,974 0.9774 874,164,082 50 2,782 5 B 211,926,346 0.9653 219,544,542 17 477 6 B 212,730,367 0.9881 215,292,346 8 44 7 B 208,904,164 0.9382 222,664,852 5 11 8 F1 532,700,557 0.8161 652,739,317 14 812 9 F1 528,714,257 0.8729 605,698,542 7 159 10 F1 546,901,191 0.9217 593,361,388 6 45 11 F1 508,910,358 1.0071 505,322,568 5 12 12 L1 241,433,728 0.9398 256,899,051 7 1,167 13 L1 241,851,648 1.1440 211,408,783 7 219 14 L1 241,156,199 1.0842 222,427,780 7 82 15 L1 240,365,081 1.0005 240,244,959 7 23 RANDOM TOTALS: 7,133,233,349 7,471,417,924 288 29,174 CATG D1 EXCEPTION VALUES: 125,366 96,318 CATG B EXCEPTION VALUES: 34,079,542 36,547,389 TOTAL TEST VALUES (4): 7,167,438,257 7,508,061,631 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 375,403,082 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 7,132,658,549 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 7,167,438,257 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 7,883,464,713 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 7,645,867,084 (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
