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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:21:40                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              230/Upshur                                                VRSN:      W
                                                        230-904/Union Hill ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                4,185,407        0.9358             4,472,544              11              355         .099469901
      2           A                4,212,236        1.0618             3,967,071              15              106         .042542368
      3           A                4,153,001        0.9363             4,435,545              14               65         .011858041
      4           A                4,152,425        1.0118             4,103,998              12               44         .017732272
      5           D3              32,039,073        0.9074            35,308,654              19            2,315         .033036578
      6           G1              26,055,049        1.0106            25,781,762              28               35         .012902615
  RANDOM TOTALS:                  74,797,191                          78,069,574              99            2,920
  CATG D1 EXCEPTION VALUES:        4,356,951                           4,091,750
 TOTAL TEST VALUES (4):           79,154,142                          82,161,324
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            4,108,066
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             78,053,258 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              79,154,142 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             86,269,390 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              71,241,414 (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