DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:39:21 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 227/Travis VRSN: W 227-901/Austin ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 5,847,745,419 0.9226 6,338,332,342 101 48,450 .022340214 2 A 5,847,317,070 0.9096 6,428,448,846 89 32,595 .028810651 3 A 5,847,294,450 0.8765 6,671,185,910 97 22,008 .024314354 4 A 5,847,433,555 0.8318 7,029,855,200 63 10,879 .084024569 5 B 1,255,052,811 0.9310 1,348,069,614 50 7,806 .036508956 6 B 1,257,697,122 0.8975 1,401,333,841 22 1,718 .059009722 7 B 1,258,141,510 0.8690 1,447,803,809 10 164 .054118060 8 B 1,248,522,645 0.9253 1,349,316,595 12 64 .029618961 9 C 151,953,309 0.6762 224,716,517 13 4,876 .096578511 10 C 152,010,886 0.7445 204,178,490 30 1,403 .095497017 11 C 152,280,281 0.6625 229,857,028 18 466 .440388424 12 C 151,497,050 0.9138 165,787,973 7 123 .010302987 13 D3 212,913,356 0.8085 263,343,669 12 2,012 .124962709 14 F1 2,230,379,118 0.7856 2,839,077,289 24 3,787 .120041011 15 F1 2,242,199,903 0.8773 2,555,796,082 34 921 .045661940 16 F1 2,218,087,531 0.9895 2,241,624,589 14 310 .010471435 17 F1 2,229,197,344 0.9356 2,382,639,316 15 94 .038600076 18 L1 649,430,737 1.0344 627,833,272 7 6,077 .054020692 19 L1 649,477,629 0.9835 660,373,797 7 1,151 .009971947 20 L1 650,834,858 1.0016 649,795,186 7 349 .003166384 21 L1 646,867,077 0.9821 658,657,038 9 98 .012617596 RANDOM TOTALS: 40,746,333,661 45,718,026,403 641 145,351 CATG D1 EXCEPTION VALUES: 1,854,387 2,179,455 TOTAL TEST VALUES (4): 40,748,188,048 45,720,205,858 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 2,286,010,293 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 40,748,188,048 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 43,434,195,565 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 48,006,216,151 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 40,673,736,142 (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
