DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:07:33 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 072/Erath VRSN: W 072-903/Stephenville ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 95,667,537 0.9705 98,575,515 78 1,820 .012507259 2 A 95,704,267 1.0123 94,541,408 54 1,086 .006314912 3 A 95,669,291 1.0121 94,525,532 62 815 .005394611 4 A 95,563,225 1.0064 94,955,510 47 469 .004090476 5 D3 164,547,940 0.9390 175,237,423 43 4,791 .038780831 6 F1 37,162,712 0.8891 41,798,124 14 329 .031370180 7 F1 37,262,662 0.8398 44,370,876 15 116 .117304417 8 F1 37,729,657 0.9420 40,052,714 11 45 .046170471 9 F1 35,781,306 1.0219 35,014,489 6 9 .044274418 10 L1 17,812,094 1.0292 17,306,737 9 399 .023743645 11 L1 17,898,272 0.9399 19,042,741 7 107 .144640461 12 L1 18,419,927 1.0430 17,660,524 9 34 .009032591 13 L1 17,092,974 1.0452 16,353,783 4 7 .000203836 RANDOM TOTALS: 766,311,864 789,435,376 359 10,027 CATG D1 EXCEPTION VALUES: 14,774,610 12,142,355 TOTAL TEST VALUES (4): 781,086,474 801,577,731 MARGIN OF ERROR PERCENT: 5.0000001 MARGIN OF ERROR VALUE: 40,078,887 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 761,498,844 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 781,086,474 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 841,656,618 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 882,867,168 (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
