DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:02:23 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 045/Colorado VRSN: W 045-902/Columbus ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 202,382,452 0.9725 208,105,349 37 2,514 .014608071 2 D3 179,107,114 0.9698 184,684,589 55 6,065 .022084020 3 F1 59,653,851 0.9072 65,756,009 11 404 .002874108 4 G1 11,019,918 1.1251 9,794,612 5 19 .119052535 5 G1 9,537,761 1.0222 9,330,621 3 6 .002147566 6 G1 12,611,179 1.2262 10,284,765 3 4 .122928088 RANDOM TOTALS: 474,312,275 487,955,945 114 9,012 CATG J EXCEPTION VALUES: 23,477,429 24,153,996 CATG D1 EXCEPTION VALUES: 24,095,600 23,044,515 CATG G1 EXCEPTION VALUES: 6,145,534 6,149,506 TOTAL TEST VALUES (4): 528,030,838 541,303,962 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 27,065,198 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 514,238,764 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 528,030,838 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 568,369,160 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 536,559,754 (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
