DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 10:43:51 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 057/Dallas VRSN: W 057-919/Sunnyvale ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 74,482,072 0.9928 75,022,232 12 370 .000505081 2 A 74,579,599 1.0039 74,289,869 14 281 .002641066 3 A 74,452,216 1.0060 74,008,167 10 229 .000767567 4 A 74,406,019 1.0084 73,786,215 15 160 .003077673 5 F1 7,500,503 0.8903 8,424,692 5 24 .010013079 6 F1 8,116,871 0.9530 8,517,178 5 13 .012599148 7 F1 7,926,536 0.9631 8,230,232 3 6 .003677621 8 F1 6,728,868 0.8731 7,706,870 2 3 .000193980 9 L1 6,590,734 1.0612 6,210,643 7 21 .005433184 10 L1 8,071,498 0.9987 8,082,005 5 7 .000010476 RANDOM TOTALS: 342,854,916 344,278,103 78 1,114 CATG D1 EXCEPTION VALUES: 662,279 718,795 CATG F1 EXCEPTION VALUES: 18,678,440 18,633,820 CATG L1 EXCEPTION VALUES: 50,437,350 49,909,171 TOTAL TEST VALUES (4): 412,632,985 413,539,889 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 20,676,994 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 392,862,895 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 412,632,985 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 434,216,883 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 450,661,149 (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
