DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:33:03 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 188/Potter VRSN: W 188-901/Amarillo ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 1,056,312,757 0.9402 1,123,497,933 58 18,510 .016734320 2 A 1,056,343,721 0.9641 1,095,678,582 55 10,895 .009980451 3 A 1,056,368,598 0.9630 1,096,955,969 56 7,676 .005377125 4 A 1,056,103,803 0.9549 1,105,983,666 55 3,991 .007365701 5 F1 259,870,482 0.9950 261,176,364 7 1,789 .093320356 6 F1 260,527,047 1.1352 229,498,808 9 418 .122527713 7 F1 263,481,684 0.9500 277,349,141 8 123 .005931937 8 F1 255,389,882 0.9896 258,073,850 6 28 .004719609 9 L1 183,994,089 0.9602 191,620,588 10 2,106 .011311296 10 L1 184,592,641 1.0317 178,920,850 12 394 .006083644 11 L1 186,588,750 1.0065 185,383,756 7 94 .000709056 12 L1 180,782,262 0.9861 183,330,557 7 13 .000432359 RANDOM TOTALS: 6,000,355,716 6,187,470,064 290 46,037 CATG D1 EXCEPTION VALUES: 519,686 635,641 TOTAL TEST VALUES (4): 6,000,875,402 6,188,105,705 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 309,405,285 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 5,878,700,420 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 6,000,875,402 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 6,497,510,990 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 5,827,064,653 (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
