DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:10:21 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 090/Gray VRSN: W 090-903/McLean ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 8,324,570 0.9619 8,654,299 10 500 .038850628 2 D3 5,897,070 0.7812 7,548,733 11 1,127 .154731910 3 G1 19,073,871 0.9230 20,665,082 7 216 .034059052 4 G1 19,261,186 0.9937 19,383,301 7 93 .004062530 5 G1 19,161,886 0.9836 19,481,381 6 55 .000859403 6 G1 18,735,242 1.0244 18,288,991 6 30 .013206525 7 L1 2,151,903 0.9602 2,241,099 9 79 .005099492 RANDOM TOTALS: 92,605,728 96,262,886 56 2,100 CATG J EXCEPTION VALUES: 6,339,186 5,639,308 CATG D1 EXCEPTION VALUES: 8,693,060 10,465,829 TOTAL TEST VALUES (4): 107,637,974 112,368,023 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 5,618,401 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 106,749,622 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 107,637,974 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 117,986,424 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 123,529,775 (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
