DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:06:47 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 070/Ellis VRSN: W 070-905/Ferris ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 42,037,293 1.0245 41,032,009 16 889 .027944787 2 A 41,932,564 0.9099 46,084,805 17 431 .058130758 3 A 41,984,513 0.9837 42,680,200 14 280 .003241697 4 A 41,984,615 1.0940 38,377,162 13 191 .013767945 5 D3 36,884,260 0.9699 38,028,931 25 1,599 .070942821 6 F1 4,355,464 0.6862 6,347,222 12 44 .649079408 7 F1 4,213,014 0.9807 4,295,925 7 17 .050639387 8 F1 4,494,065 0.8142 5,519,608 4 10 .032945643 RANDOM TOTALS: 217,885,788 222,365,862 108 3,461 CATG D1 EXCEPTION VALUES: 5,004,609 6,004,255 CATG F1 EXCEPTION VALUES: 2,401,370 2,690,915 TOTAL TEST VALUES (4): 225,291,767 231,061,032 MARGIN OF ERROR PERCENT: 5.0000002 MARGIN OF ERROR VALUE: 11,553,052 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 219,507,980 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 225,291,767 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 242,614,084 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 260,131,138 (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
