DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:26:21 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 254/Zavala VRSN: W 254-901/Crystal City ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 10,903,618 0.9773 11,156,879 7 801 .021489523 2 A 10,910,165 0.9537 11,439,829 7 472 .010048023 3 A 10,882,579 0.9981 10,903,295 8 329 .009315220 4 A 10,885,382 0.9542 11,407,862 7 189 .003764489 5 D3 20,755,824 0.8928 23,248,011 16 2,144 .091898362 6 F1 2,851,247 0.9626 2,962,027 7 80 .002478448 7 F1 2,948,895 0.9678 3,047,009 7 27 .008080967 8 F1 2,756,095 0.9737 2,830,538 5 9 .001214162 9 G1 7,214,587 1.0159 7,101,670 6 27 .005295133 10 G1 7,162,912 1.0557 6,784,988 4 9 .043750539 11 G1 8,880,266 0.9752 9,106,097 3 4 .009499029 RANDOM TOTALS: 96,151,570 99,988,205 77 4,091 CATG J EXCEPTION VALUES: 10,624,449 10,637,957 CATG D1 EXCEPTION VALUES: 26,414,149 27,002,175 CATG F1 EXCEPTION VALUES: 2,647,589 2,758,704 CATG G1 EXCEPTION VALUES: 13,041,360 12,141,059 TOTAL TEST VALUES (4): 148,879,117 152,528,100 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 7,626,405 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 144,901,695 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 148,879,117 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 160,154,505 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 172,857,924 (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
