DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:26:09 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 252/Young VRSN: W 252-901/Graham ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 53,692,282 0.9278 57,870,535 38 1,676 .127908688 2 A 53,619,001 0.9800 54,713,266 20 902 .064039894 3 A 53,689,261 0.9845 54,534,546 22 552 .044303722 4 A 53,590,847 0.9028 59,360,708 14 303 .072505148 5 D3 48,585,950 0.9612 50,547,181 46 5,300 .172943590 6 F1 10,017,767 0.8042 12,456,810 8 242 .144370414 7 F1 10,031,714 0.8565 11,712,451 8 96 .118144478 8 F1 10,211,381 0.8672 11,775,116 8 30 .071377599 9 F1 9,790,473 0.9544 10,258,249 4 7 .002155530 10 G1 21,800,630 0.9621 22,659,422 7 323 .023616003 11 G1 21,553,460 0.8898 24,222,814 6 85 .065613977 12 G1 22,569,869 0.9963 22,653,688 6 27 .011460315 13 G1 20,768,140 1.0749 19,320,997 2 3 .000018890 14 L1 7,341,894 0.9900 7,416,055 9 215 .001083776 15 L1 7,220,428 1.0149 7,114,423 8 49 .012043376 16 L1 7,486,232 0.9924 7,543,563 7 19 .001137831 RANDOM TOTALS: 411,969,329 434,159,824 213 9,829 CATG J EXCEPTION VALUES: 29,728,784 29,405,031 CATG D1 EXCEPTION VALUES: 23,275,187 20,844,297 CATG L1 EXCEPTION VALUES: 11,322,820 11,889,011 TOTAL TEST VALUES (4): 476,296,120 496,298,163 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 24,814,908 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 471,483,255 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 476,296,120 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 521,113,071 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 491,324,120 (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
