DATE: 01/23/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:07:44 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 072/Erath VRSN: W 072-910/Morgan Mill ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 A 1,161,521 0.9227 1,258,828 8 36 .024151653 2 A 1,136,114 0.8920 1,273,670 13 21 .034200916 3 A 1,177,359 0.9180 1,282,526 12 16 .024954052 4 D3 28,555,610 0.9524 29,982,791 34 999 .019405255 5 G1 1,711,860 1.0758 1,591,244 6 21 .018055597 6 G1 1,683,970 1.1129 1,513,137 4 10 .002411409 7 G1 1,785,450 1.1336 1,575,026 3 6 .007730269 8 G1 1,287,890 1.0128 1,271,613 2 3 .008384726 RANDOM TOTALS: 38,499,774 39,748,835 82 1,112 CATG J EXCEPTION VALUES: 1,398,040 1,426,116 CATG D1 EXCEPTION VALUES: 4,525,600 3,896,411 CATG A EXCEPTION VALUES: 989,770 1,096,798 TOTAL TEST VALUES (4): 45,413,184 46,168,160 MARGIN OF ERROR PERCENT: 5.0000000 MARGIN OF ERROR VALUE: 2,308,408 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 43,859,752 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 45,413,184 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 48,476,568 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 43,171,483 (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
