DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:10:50 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 091/Grayson VRSN: W 091-913/Pottsboro ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 85,997,774 0.9916 86,726,275 40 1,541 .036481073 2 A 86,014,312 1.0397 82,729,934 38 772 .023081175 3 A 86,050,138 0.9968 86,326,382 43 484 .018856063 4 A 85,759,482 0.9715 88,275,329 18 256 .041440110 5 D3 44,481,632 1.1023 40,353,472 30 1,740 .034764467 6 F1 10,615,117 0.9762 10,873,916 8 74 .015413670 7 F1 10,060,127 1.0184 9,878,365 5 17 .015200473 8 G1 9,542,280 0.9861 9,676,787 6 30 .003797580 9 G1 8,398,503 1.0194 8,238,673 4 8 .001196284 10 G1 10,016,465 1.0789 9,283,961 3 5 .045853813 RANDOM TOTALS: 436,935,830 432,363,094 195 4,927 CATG D1 EXCEPTION VALUES: 3,571,916 2,398,791 CATG F1 EXCEPTION VALUES: 18,888,829 20,940,216 CATG G1 EXCEPTION VALUES: 7,449,590 6,811,248 TOTAL TEST VALUES (4): 466,846,165 462,513,349 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 23,125,667 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 439,387,682 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 466,846,165 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 485,639,016 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 494,310,062 (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
