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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:23:25                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              241/Wharton                                               VRSN:      W
                                                        241-903/El Campo ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               69,637,293        0.8525            81,685,974              15            1,914         .086351758
      2           A               69,581,796        0.8741            79,603,931              11              994         .025633562
      3           A               69,563,098        0.8291            83,901,939              15              653         .070538584
      4           A               69,554,923        0.9531            72,977,571              11              379         .013194263
      5           D3              56,378,165        0.9399            59,983,152              24            6,320         .026667859
      6           F1              15,602,489        0.7917            19,707,577               9              271         .075994302
      7           F1              15,553,578        0.7067            22,008,742               9               97         .104454705
      8           F1              15,612,972        0.7981            19,562,676               6               29         .065165214
      9           G1              62,873,533        0.9750            64,485,675               7               95         .012428314
     10           G1              63,464,765        1.0607            59,832,908               6               33         .055561908
     11           G1              61,258,204        0.9856            62,153,210               4               10         .018022640
     12           G1              59,657,030        0.9745            61,218,091               3                4         .004437085
     13           L1              12,165,645        1.0527            11,556,612               8              242         .008167137
     14           L1              12,273,858        0.9701            12,652,158               6               59         .019422946
     15           L1              11,889,885        0.9554            12,444,929               5               21         .006119753
  RANDOM TOTALS:                 665,067,234                         723,775,145             139           11,121
  CATG J  EXCEPTION VALUES:       29,805,871                          29,666,136
  CATG D1 EXCEPTION VALUES:       64,462,100                          53,064,146
  CATG F1 EXCEPTION VALUES:       15,035,326                          15,699,477
  CATG L1 EXCEPTION VALUES:       11,098,270                          12,391,962
 TOTAL TEST VALUES (4):          785,468,801                         834,596,866
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           41,729,843
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:             785,468,801 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:            792,867,023 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            876,326,709 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             825,667,530 (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