DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:39:34 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 227/Travis VRSN: W 227-913/Lake Travis ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 802,702,425 0.8252 972,736,821 53 4,014 .113281677 2 A 802,523,295 0.9075 884,323,190 43 2,537 .028586276 3 A 802,367,437 0.8758 916,153,730 50 1,686 .032753788 4 A 802,295,390 0.8988 892,629,495 32 800 .032112479 5 C 66,651,235 0.9669 68,932,914 45 3,220 .178087218 6 C 64,480,986 0.7545 85,461,877 15 995 1.466254753 7 C 65,526,255 1.0395 63,036,320 14 501 .012972127 8 C 65,465,811 0.8664 75,560,724 7 163 .115470466 9 D3 121,194,160 0.9592 126,349,208 12 1,544 .069127732 10 F1 70,651,065 0.8956 78,886,852 9 196 .008544845 11 F1 70,760,372 0.8940 79,150,304 8 51 .017110072 12 F1 74,196,304 0.9774 75,911,913 5 19 .011234961 13 F1 66,277,285 0.9433 70,261,089 4 7 .000359920 RANDOM TOTALS: 3,875,092,020 4,389,394,437 297 15,733 CATG D1 EXCEPTION VALUES: 1,874,438 2,378,646 TOTAL TEST VALUES (4): 3,876,966,458 4,391,773,083 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 219,588,654 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 3,876,966,458 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 4,172,184,429 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 4,611,361,737 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 3,850,559,710 (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
