DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:41:10 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 237/Waller VRSN: W 237-905/Royal ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 29,284,743 1.0102 28,989,055 12 609 .055116758 2 A 29,247,912 0.9246 31,633,043 15 339 .037205476 3 A 29,383,224 1.0552 27,846,118 23 230 .006065333 4 A 28,953,229 1.0833 26,726,880 13 134 .019595436 5 D3 95,336,085 1.0330 92,290,499 28 4,528 .008827393 6 F1 7,086,822 0.9819 7,217,458 7 114 .231387411 7 F1 7,141,771 1.0953 6,520,379 6 43 .012712530 8 F1 14,101,641 0.8853 15,928,658 9 26 .015985690 9 G1 12,467,930 0.8710 14,314,501 5 19 .040760619 10 G1 12,556,306 1.2670 9,910,265 3 6 .124800217 11 G1 10,578,712 1.0282 10,288,574 2 3 .017498258 RANDOM TOTALS: 276,138,375 271,665,430 123 6,051 CATG J EXCEPTION VALUES: 11,471,444 13,092,752 CATG D1 EXCEPTION VALUES: 12,686,160 12,652,280 CATG G1 EXCEPTION VALUES: 11,104,543 11,683,165 TOTAL TEST VALUES (4): 311,400,522 309,093,627 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 15,454,681 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 293,638,946 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 311,400,522 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 324,548,308 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 485,934,973 (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
