DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 10:41:23 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 043/Collin VRSN: W 043-912/Prosper ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 111,973,888 1.0067 111,228,656 59 702 .001870956 2 A 111,836,485 1.0085 110,893,887 49 501 .001544706 3 A 112,089,553 1.0087 111,122,785 41 320 .001693799 4 A 111,374,326 0.9907 112,419,830 18 184 .001199547 5 D3 84,237,213 0.8482 99,312,913 15 1,164 .076524172 6 F1 16,539,235 0.8821 18,749,841 7 120 .020135432 7 F1 16,225,512 0.8540 18,999,429 6 35 .068564898 8 F1 17,327,043 0.9951 17,412,364 4 12 .001377464 9 F1 15,352,133 1.0137 15,144,651 3 5 .000705196 10 L1 6,722,370 0.8884 7,566,828 6 70 .021096014 11 L1 7,375,147 0.9878 7,466,235 5 13 .001945595 12 L1 12,076,531 0.9580 12,605,982 3 5 .004541099 RANDOM TOTALS: 623,129,436 642,923,401 216 3,131 CATG D1 EXCEPTION VALUES: 4,209,037 3,812,631 TOTAL TEST VALUES (4): 627,338,473 646,736,032 MARGIN OF ERROR PERCENT: 5.0000001 MARGIN OF ERROR VALUE: 32,336,802 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 614,399,230 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 627,338,473 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 679,072,834 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 744,594,909 (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
