DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:23:05 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 239/Washington VRSN: W 239-903/Burton ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 8,450,736 0.8775 9,630,468 7 269 .023534941 2 A 8,456,802 0.8484 9,967,942 7 137 .010928881 3 A 8,465,724 0.9503 8,908,475 8 90 .014667935 4 A 8,379,430 1.0443 8,023,968 7 50 .013147771 5 D3 111,745,819 0.9021 123,872,984 22 3,246 .035483945 6 G1 22,200,584 1.0180 21,808,039 7 38 .000829166 7 G1 22,311,031 0.9729 22,932,502 6 20 .006542741 8 G1 22,906,329 1.0279 22,284,589 5 14 .008827039 9 G1 19,970,380 1.0840 18,422,860 3 5 .027203992 RANDOM TOTALS: 232,886,835 245,851,827 72 3,869 CATG J EXCEPTION VALUES: 5,912,215 5,679,298 CATG D1 EXCEPTION VALUES: 7,368,252 7,118,931 TOTAL TEST VALUES (4): 246,167,302 258,650,056 MARGIN OF ERROR PERCENT: 5.0000001 MARGIN OF ERROR VALUE: 12,932,503 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 245,717,553 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 246,167,302 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 271,582,559 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 255,569,568 (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
