DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:39:29 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 227/Travis VRSN: W 227-910/Del Valle ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 146,931,819 0.8986 163,511,929 28 2,133 .025007385 2 A 147,091,239 0.9944 147,919,589 18 1,396 .017692887 3 A 146,710,522 0.9225 159,035,796 16 1,146 .011116714 4 A 146,801,090 0.9903 148,239,008 7 794 .008447582 5 B 73,133,832 0.8738 83,696,306 7 83 .003713416 6 B 62,946,671 0.8697 72,377,453 5 7 .016580675 7 B 77,911,379 0.7860 99,123,892 4 5 .012616852 8 D3 137,236,840 0.7094 193,454,807 24 3,717 .870324973 9 F1 76,074,501 1.0122 75,157,579 7 185 .041644593 10 F1 74,589,340 0.9312 80,100,236 6 46 .014095312 11 F1 77,437,114 0.8733 88,671,836 6 20 .021744110 12 F1 73,158,945 0.9553 76,582,168 5 8 .005324826 13 L1 77,342,004 0.9263 83,495,632 7 257 .005316011 14 L1 77,370,368 0.9290 83,283,496 6 45 .007075638 15 L1 85,120,330 0.9811 86,760,096 6 19 .012633723 16 L1 68,797,983 1.0562 65,137,269 3 5 .004614636 RANDOM TOTALS: 1,548,653,977 1,706,547,092 155 9,866 CATG D1 EXCEPTION VALUES: 9,321,782 9,492,731 CATG B EXCEPTION VALUES: 50,393,436 58,162,724 TOTAL TEST VALUES (4): 1,608,369,195 1,774,202,547 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 88,710,127 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 1,608,369,195 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 1,685,492,420 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 1,862,912,674 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 2,111,921,484 (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
