DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:09:48 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 084/Galveston VRSN: W 084-911/Friendswood ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 376,757,500 0.9545 394,717,129 57 2,769 .010816574 2 A 376,829,718 0.9693 388,764,797 57 1,822 .005099251 3 A 376,591,948 0.9582 393,020,192 57 1,375 .002597680 4 A 376,525,507 0.9609 391,846,713 56 844 .006311112 5 F1 23,405,198 0.8423 27,787,247 7 102 .010232355 6 F1 23,421,220 0.8287 28,262,604 6 44 .021698323 7 F1 24,362,152 0.8230 29,601,643 5 16 .044968233 RANDOM TOTALS: 1,577,893,243 1,654,000,325 245 6,972 CATG D1 EXCEPTION VALUES: 223,050 293,376 CATG F1 EXCEPTION VALUES: 22,621,010 24,314,801 TOTAL TEST VALUES (4): 1,600,737,303 1,678,608,502 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 83,930,425 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 1,594,678,077 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 1,600,737,303 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 1,762,538,927 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 1,624,439,060 (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
