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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:07:28                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              072/Erath                                                 VRSN:      W
                                                        072-901/Three-Way ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           D3              23,215,020        0.8882            26,137,154              33              895         .041252867
  RANDOM TOTALS:                  23,215,020                          26,137,154              33              895
  CATG J  EXCEPTION VALUES:        2,000,580                           2,155,356
  CATG D1 EXCEPTION VALUES:        5,060,460                           4,444,817
 TOTAL TEST VALUES (4):           30,276,060                          32,737,327
 MARGIN OF ERROR PERCENT:          5.6375678
 MARGIN OF ERROR VALUE:            1,845,589
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:              30,276,060 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:             30,891,738 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:             34,582,916 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              31,161,435 (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