DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 10:41:02 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 043/Collin VRSN: W 043-902/Anna ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 48,323,333 0.9611 50,279,194 24 512 .013393677 2 A 49,319,210 1.0050 49,073,841 89 332 .001324477 3 A 47,207,351 0.9921 47,583,259 49 266 .004048843 4 A 48,135,092 0.9964 48,309,004 32 187 .001772361 5 C 5,815,700 0.8993 6,466,919 8 365 .010117102 6 C 1,547,221 0.8843 1,749,656 6 82 .016403009 7 C 3,675,604 0.9120 4,030,268 6 175 .012655100 8 C 3,676,280 0.8261 4,450,163 7 90 .100074577 9 D3 68,648,342 0.8599 79,832,936 21 1,694 .052584669 10 F1 4,323,303 0.9598 4,504,379 5 21 .034103542 11 F1 7,922,757 0.9621 8,234,858 3 4 .000747897 RANDOM TOTALS: 288,594,193 304,514,477 250 3,728 CATG D1 EXCEPTION VALUES: 3,822,150 3,383,638 CATG F1 EXCEPTION VALUES: 8,201,853 8,017,101 TOTAL TEST VALUES (4): 300,618,196 315,915,216 MARGIN OF ERROR PERCENT: 5.0000001 MARGIN OF ERROR VALUE: 15,795,761 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 300,119,455 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 300,618,196 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 331,710,977 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 329,758,002 (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
