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DATE: 01/27/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:59:01                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              031/Cameron                                               VRSN:      W
                                                        031-903/Harlingen ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              334,106,851        0.9167           364,466,948              35            7,834         .054644977
      2           A              334,055,164        0.9574           348,919,118              56            4,407         .025527769
      3           A              334,063,608        0.9580           348,709,403              49            2,924         .010303239
      4           A              334,046,629        0.9580           348,691,680              43            1,555         .025516536
      5           F1             135,129,200        0.9918           136,246,421              12              850         .111763845
      6           F1             134,935,076        0.9532           141,560,088               9              244         .006488176
      7           F1             136,661,013        0.9648           141,646,987               9               74         .016095106
      8           F1             132,877,156        0.9897           134,260,034               6               14         .004421382
      9           L1              58,616,198        1.0183            57,562,799               7              849         .006449667
     10           L1              58,414,079        0.9844            59,339,780               7              198         .003374199
     11           L1              59,402,533        1.0439            56,904,429               6               64         .013149368
     12           L1              57,390,846        0.9601            59,775,905               5               13         .008975056
  RANDOM TOTALS:               2,109,698,353                       2,198,083,592             244           19,026
  CATG D1 EXCEPTION VALUES:        5,838,953                           5,735,379
 TOTAL TEST VALUES (4):        2,115,537,306                       2,203,818,971
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          110,190,949
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          2,093,628,022 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           2,115,537,306 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          2,314,009,920 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           2,431,343,105 (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