DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:34:16 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 198/Robertson VRSN: W 198-902/Calvert ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 3,926,774 0.7960 4,933,133 15 250 .077303806 2 A 3,927,869 0.9248 4,247,263 15 121 .135904835 3 A 3,953,008 0.9618 4,110,010 15 72 .117998184 4 A 3,860,314 1.0322 3,739,890 15 37 .021524245 5 D3 7,543,200 1.0151 7,430,992 21 975 .041470359 6 F1 699,304 0.8095 863,872 6 44 .028511865 7 F1 669,800 0.9306 719,751 5 13 .003610234 8 F1 695,727 0.9357 743,536 3 6 .020385323 9 G1 1,239,342 1.0115 1,225,252 7 10 .021109943 RANDOM TOTALS: 26,515,338 28,013,699 102 1,528 CATG J EXCEPTION VALUES: 10,578,268 10,948,187 CATG D1 EXCEPTION VALUES: 5,875,840 6,712,708 CATG F1 EXCEPTION VALUES: 640,970 686,926 TOTAL TEST VALUES (4): 43,610,416 46,361,520 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 2,318,076 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 43,610,416 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 44,043,444 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 48,679,596 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 47,168,166 (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
