DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 10:54:47 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 006/Armstrong VRSN: W 006-902/Claude ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 24,720,970 0.8187 30,195,395 23 596 .046368507 2 D3 11,050,280 0.6017 18,365,099 20 2,300 .465285911 3 L1 6,330,730 1.0314 6,137,997 10 70 .009176645 RANDOM TOTALS: 42,101,980 54,698,491 53 2,966 CATG J EXCEPTION VALUES: 9,272,922 9,191,392 CATG D1 EXCEPTION VALUES: 34,167,180 29,457,239 TOTAL TEST VALUES (4): 85,542,082 93,347,122 MARGIN OF ERROR PERCENT: 6.6464234 MARGIN OF ERROR VALUE: 6,204,245 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 85,542,082 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 87,142,877 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 99,551,367 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 83,879,042 (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
