DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:10:18 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 090/Gray VRSN: W 090-902/Lefors ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 4,954,860 0.9382 5,281,241 11 334 .028331169 2 D3 2,386,720 0.7277 3,279,813 15 335 .139135801 3 G1 14,271,277 1.0814 13,197,038 15 89 .076913102 4 G1 13,869,723 0.9549 14,524,791 12 22 .051676846 5 G1 14,488,422 1.0087 14,363,460 6 8 .008819186 RANDOM TOTALS: 49,971,002 50,646,343 59 788 CATG J EXCEPTION VALUES: 2,150,787 2,065,731 CATG D1 EXCEPTION VALUES: 2,154,340 2,721,341 CATG G1 EXCEPTION VALUES: 13,531,526 14,760,740 TOTAL TEST VALUES (4): 67,807,655 70,194,155 MARGIN OF ERROR PERCENT: 5.0000004 MARGIN OF ERROR VALUE: 3,509,708 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 66,684,447 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 67,807,655 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 73,703,863 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 77,748,347 (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
