DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:12:20 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 178/Nueces VRSN: W 178-909/Robstown ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 33,234,568 0.9446 35,183,748 12 1,570 .029343907 2 A 33,204,218 0.9243 35,923,637 11 988 .012147232 3 A 33,201,981 0.9804 33,865,750 12 634 .031966373 4 A 33,206,224 0.9740 34,092,632 16 354 .022085618 5 D3 11,752,460 0.9511 12,356,703 10 1,039 .006130812 6 F1 8,353,171 0.9371 8,913,852 7 175 .016058973 7 F1 8,253,983 0.9418 8,764,051 7 56 .005047725 8 F1 8,522,013 0.9602 8,875,248 6 24 .003592670 9 F1 8,081,813 0.9599 8,419,432 5 8 .000571471 10 L1 8,448,179 0.9349 9,036,452 8 141 .003140716 11 L1 8,524,479 0.9631 8,851,084 5 18 .003491280 12 L1 8,846,781 0.9793 9,033,780 3 6 .000132346 13 L1 7,378,992 1.0029 7,357,655 2 3 .000027064 RANDOM TOTALS: 211,008,862 220,674,024 104 5,016 CATG J EXCEPTION VALUES: 14,404,437 12,298,178 CATG D1 EXCEPTION VALUES: 15,044,053 14,530,297 TOTAL TEST VALUES (4): 240,457,352 247,502,499 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 12,375,125 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 235,127,374 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 240,457,352 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 259,877,624 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 235,663,227 (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
