DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:10:54 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 091/Grayson VRSN: W 091-914/Sadler-Southmayd ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 26,378,457 1.0224 25,800,525 19 546 .028825699 2 A 26,324,219 0.9803 26,853,228 16 255 .035904250 3 A 26,367,907 1.0035 26,275,941 14 151 .004336180 4 A 26,308,545 1.0064 26,141,241 11 70 .006784570 5 D3 47,158,299 1.0748 43,876,348 39 2,676 .045413084 6 G1 13,261,328 1.0362 12,798,039 6 32 .002904214 7 G1 13,557,441 1.0405 13,029,737 4 8 .008140642 8 G1 11,814,370 0.9357 12,626,237 2 3 .049793757 RANDOM TOTALS: 191,170,566 187,401,296 111 3,741 CATG D1 EXCEPTION VALUES: 8,493,495 5,913,733 CATG G1 EXCEPTION VALUES: 25,687,857 25,354,617 TOTAL TEST VALUES (4): 225,351,918 218,669,646 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 10,933,482 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 207,736,164 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 225,351,918 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 229,603,128 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 251,146,902 (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
