DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:24:53 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 246/Williamson VRSN: W 246-907/Jarrell ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 78,047,768 0.9890 78,915,842 40 558 .002064655 2 A 77,994,607 0.9710 80,324,003 39 366 .003367661 3 A 78,197,078 0.9586 81,574,252 40 294 .002704302 4 A 77,775,550 0.9697 80,205,785 40 204 .003703839 5 C 6,752,383 0.9031 7,476,894 11 287 .031980883 6 C 4,679,960 1.0236 4,572,059 9 108 .001835223 7 C 1,516,998 1.0015 1,514,726 9 20 .000875641 8 D3 52,351,696 0.9930 52,720,741 21 1,566 .003078733 RANDOM TOTALS: 377,316,040 387,304,302 209 3,403 CATG D1 EXCEPTION VALUES: 4,411,594 4,543,343 TOTAL TEST VALUES (4): 381,727,634 391,847,645 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 19,592,382 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 372,255,263 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 381,727,634 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 411,440,027 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 363,838,243 (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
