DATE: 02/10/2005 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 12:22:34 2004 CONFIDENCE INTERVAL DETAIL REPT: PTS428 227/Travis VRSN: P 227-910/Del Valle ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS _________ ________ ___________ _____________ ___________ ___________ _____________ 1 A 131,881,566 1.0155 129,868,603 22 2,044 2 A 131,954,976 0.9733 135,574,824 33 1,304 3 A 132,753,540 0.9814 135,269,554 42 1,067 4 A 130,975,761 0.9956 131,554,601 29 717 5 B 72,547,878 1.0341 70,155,573 11 69 6 B 204,066,628 0.9497 214,874,832 8 14 7 D3 140,529,273 0.7695 182,624,136 13 3,330 8 F1 72,361,779 0.9744 74,262,909 8 155 9 F1 75,010,818 1.0290 72,896,810 6 38 10 F1 72,700,552 1.0316 70,473,587 6 16 11 F1 69,038,518 0.9638 71,631,581 4 7 12 L1 84,331,890 0.9696 86,975,959 7 246 13 L1 85,382,253 0.9579 89,134,829 6 43 14 L1 84,676,816 0.9655 87,702,554 5 18 15 L1 80,389,522 1.0258 78,367,637 4 7 RANDOM TOTALS: 1,568,601,770 1,631,367,989 204 9,075 CATG D1 EXCEPTION VALUES: 10,254,569 9,939,315 TOTAL TEST VALUES (4): 1,578,856,339 1,641,307,304 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 82,065,365 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 1,559,241,939 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 1,578,856,339 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 1,723,372,669 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 2,105,578,046 (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
