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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:14:30                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              187/Polk                                                  VRSN:      W
                                                        187-904/Corrigan-Camden ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               10,282,702        1.1711             8,780,379              15              554         .221364645
      2           A               10,307,521        1.1659             8,840,828              15              287         .139555769
      3           A               10,285,297        0.7841            13,117,328              15              166         .020129260
      4           A               10,223,549        1.0145            10,077,426              15               87         .080032748
      5           C                3,174,711        1.1659             2,722,970               7            1,166         .238265610
      6           C                3,296,011        0.8868             3,716,747               7              565         .256917588
      7           C                2,305,234        1.1852             1,945,017               8              244         .024628035
      8           C                2,885,305        1.4288             2,019,390               7              189         .102197442
      9           D3              16,514,470        1.0693            15,444,188              20            2,171         .009961079
     10           G1               8,096,683        0.9847             8,222,487              13               17         .037643104
  RANDOM TOTALS:                  77,371,483                          74,886,760             122            5,446
  CATG J  EXCEPTION VALUES:       17,111,138                          17,961,272
  CATG D1 EXCEPTION VALUES:       35,499,404                          35,411,141
 TOTAL TEST VALUES (4):          129,982,025                         128,259,173
 MARGIN OF ERROR PERCENT:          5.0000003
 MARGIN OF ERROR VALUE:            6,412,959
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            121,846,214 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             129,982,025 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            134,672,132 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             198,278,688 (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