DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:18:58 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 123/Jefferson VRSN: W 123-907/Port Arthur ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 155,851,704 1.0200 152,795,788 25 7,602 .096776732 2 A 155,842,900 0.9748 159,871,666 21 4,055 .004591432 3 A 155,856,116 0.9601 162,333,211 20 2,456 .001586158 4 A 155,804,793 0.9769 159,488,989 20 1,227 .001737917 5 F1 71,494,203 0.9889 72,296,696 16 495 .054977171 6 F1 72,321,726 0.9567 75,594,989 15 93 .012615855 7 F1 70,038,123 0.9500 73,724,340 13 25 .051885156 8 F1 71,246,127 0.9706 73,404,211 6 7 .016841612 9 L1 37,366,996 1.0242 36,484,081 7 626 .017866459 10 L1 37,665,469 1.0512 35,830,926 8 104 .013454459 11 L1 38,062,099 1.0316 36,896,180 7 29 .004195609 12 L1 36,231,352 1.0120 35,801,731 3 6 .000329652 RANDOM TOTALS: 1,057,781,608 1,074,522,808 161 16,725 CATG J EXCEPTION VALUES: 53,399,907 55,273,080 CATG D1 EXCEPTION VALUES: 302,300 221,203 TOTAL TEST VALUES (4): 1,111,483,815 1,130,017,091 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 56,500,855 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 1,073,516,236 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 1,111,483,815 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 1,186,517,946 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 2,886,860,490 (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
