DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 10:40:20 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 039/Clay VRSN: W 039-901/Byers ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 2,502,970 0.9807 2,552,228 9 91 .012752491 2 A 2,482,584 0.9707 2,557,519 10 47 .012206330 3 A 2,504,411 1.0016 2,500,410 7 33 .007339817 4 A 2,410,931 1.0667 2,260,177 12 22 .004649680 5 D3 4,404,670 1.0183 4,325,513 10 465 .007794393 RANDOM TOTALS: 14,305,566 14,195,847 48 658 CATG J EXCEPTION VALUES: 720,029 757,706 CATG D1 EXCEPTION VALUES: 4,448,920 4,289,637 TOTAL TEST VALUES (4): 19,474,515 19,243,190 MARGIN OF ERROR PERCENT: 5.0000026 MARGIN OF ERROR VALUE: 962,160 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 18,281,030 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 19,474,515 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 20,205,350 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 18,048,483 (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
