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DATE: 01/30/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 08:09:57                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              084/Galveston                                             VRSN:      W
                                                        084-903/High Island ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               17,071,088        1.0835            15,755,503              10              466         .010091346
      2           A               17,077,980        0.8623            19,805,149               9              241         .011102441
      3           A               17,074,057        0.8524            20,030,569               7              129         .011636301
      4           A               17,027,753        0.9239            18,430,299              11               67         .047489626
      5           C                1,743,902        0.9856             1,769,381               8              727         .066419651
      6           C                1,737,443        0.9667             1,797,293               7              278         .125186729
      7           C                1,773,519        1.0316             1,719,193               6               82         .080092211
      8           C                1,705,137        1.2123             1,406,531               6               32         .046110492
      9           D3               3,656,050        1.0129             3,609,488              10              427         .010732387
     10           G1              14,390,963        0.9963            14,444,407               8               30         .003298996
  RANDOM TOTALS:                  93,257,892                          98,767,813              82            2,479
  CATG D1 EXCEPTION VALUES:          399,140                             288,876
 TOTAL TEST VALUES (4):           93,657,032                          99,056,689
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            4,952,834
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:              93,657,032 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:             94,103,855 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            104,009,523 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              93,732,827 (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