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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:56:33                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              036/Chambers                                              VRSN:      W
                                                        036-902/Barbers Hill ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              104,877,193        0.8787           119,354,948               28            1,071
           2           A              104,712,481        0.9772           107,155,629               39              645
           3           A              105,012,881        0.9748           107,727,617               33              510
           4           A              104,544,362        0.9449           110,640,663               15              327
           5           F1               9,069,776        0.8965            10,116,872                6               65
           6           F1               8,700,842        0.9631             9,034,204                6               19
           7           F1               9,057,963        1.0244             8,842,213                5               10
           8           G1              47,465,528        0.9638            49,248,317               11               79
  RANDOM TOTALS:                      493,441,026                         522,120,463              143            2,726
  CATG J  EXCEPTION VALUES:            28,179,160                          28,482,833
  CATG D1 EXCEPTION VALUES:             3,222,430                           2,592,068
  CATG F1 EXCEPTION VALUES:             8,125,930                           7,699,392
  CATG G1 EXCEPTION VALUES:            17,569,472                          17,621,023
 TOTAL TEST VALUES (4):               550,538,018                         578,515,779
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                28,925,789
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 549,589,990 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  550,538,018 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 607,441,568 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                1,968,064,098 (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