DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:20:28 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 225/Titus VRSN: W 225-906/Chapel Hill ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 10,599,640 0.7722 13,726,548 15 185 .033406776 2 A 10,500,936 0.9360 11,218,949 15 96 .022301136 3 A 10,536,623 0.9139 11,529,295 15 62 .018358979 4 A 10,430,274 0.9744 10,704,304 14 40 .006654440 5 D3 30,023,797 0.7878 38,110,938 20 1,478 .140605835 RANDOM TOTALS: 72,091,270 85,290,034 79 1,861 CATG J EXCEPTION VALUES: 3,354,536 3,294,847 CATG D1 EXCEPTION VALUES: 3,176,391 2,862,396 TOTAL TEST VALUES (4): 78,622,197 91,447,277 MARGIN OF ERROR PERCENT: 7.1433488 MARGIN OF ERROR VALUE: 6,532,398 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 78,622,197 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 84,914,879 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 97,979,675 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 75,500,985 (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
