DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:34:26 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 198/Robertson VRSN: W 198-906/Mumford ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 D3 2,033,240 0.9999 2,033,443 12 222 .031809975 2 G1 7,015,793 0.9509 7,378,056 5 19 .010200260 3 G1 6,433,929 1.0285 6,255,643 4 8 .016806695 4 G1 7,170,394 1.1181 6,413,017 3 5 .036219127 RANDOM TOTALS: 22,653,356 22,080,159 24 254 CATG J EXCEPTION VALUES: 4,229,210 4,168,803 CATG D1 EXCEPTION VALUES: 4,631,310 5,451,213 CATG G1 EXCEPTION VALUES: 5,484,153 5,663,138 TOTAL TEST VALUES (4): 36,998,029 37,363,313 MARGIN OF ERROR PERCENT: 5.0000009 MARGIN OF ERROR VALUE: 1,868,166 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 35,495,147 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 36,998,029 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 39,231,479 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 44,700,597 (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
