DATE: 02/10/2005 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 12:13:30 2004 CONFIDENCE INTERVAL DETAIL REPT: PTS428 158/Matagorda VRSN: P 158-901/Bay City ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS _________ ________ ___________ _____________ ___________ ___________ _____________ 1 A 74,793,060 0.9266 80,717,742 63 1,943 2 A 74,816,064 0.9499 78,762,042 61 1,141 3 A 74,907,689 0.9305 80,502,621 59 835 4 A 74,745,302 0.9518 78,530,471 38 473 5 F1 19,532,042 0.9191 21,251,270 11 318 6 F1 19,607,811 0.9510 20,618,098 12 134 7 F1 19,750,554 0.7273 27,155,993 10 54 8 F1 19,157,719 0.8830 21,696,171 7 16 9 G1 67,219,000 1.0147 66,245,196 14 65 10 L1 11,263,936 1.0057 11,200,095 7 296 11 L1 11,273,447 1.0451 10,786,955 7 78 12 L1 11,126,714 1.0907 10,201,443 6 28 13 L1 10,847,456 1.0384 10,446,317 3 4 RANDOM TOTALS: 489,040,794 518,114,414 298 5,385 CATG J EXCEPTION VALUES: 36,662,250 36,749,470 CATG D1 EXCEPTION VALUES: 12,924,129 13,068,730 TOTAL TEST VALUES (4): 538,627,173 567,932,614 MARGIN OF ERROR PERCENT: 5.0000001 MARGIN OF ERROR VALUE: 28,396,631 CONFIDENCE INTERVAL VALUES (5): LOCAL TEST VALUE: 538,627,173 (OUTSIDE CONFIDENCE INTERVAL) STATE LOWER LIMIT: 539,535,983 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) STATE UPPER LIMIT: 596,329,245 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 826,706,719 (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
