DATE: 01/31/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:40:11                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              196/Refugio                                               VRSN:      W
                                                        196-903/Refugio ISD
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         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________
           1           A                9,695,191        1.0058             9,639,283               12              515
           2           A                9,727,768        0.8429            11,540,833               15              301
           3           A                9,712,445        0.9767             9,944,144                9              188
           4           A                9,654,266        0.9776             9,875,477                9              100
           5           D3               9,653,240        0.9318            10,359,777               10            2,429
           6           G1             135,192,685        1.0149           133,207,887               17              188
  RANDOM TOTALS:                      183,635,595                         184,567,401               72            3,721
  CATG J  EXCEPTION VALUES:            25,553,328                          27,466,265
  CATG D1 EXCEPTION VALUES:            13,059,100                          14,156,927
  CATG G1 EXCEPTION VALUES:            85,680,375                          71,997,834
 TOTAL TEST VALUES (4):               307,928,398                         298,188,427
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                14,909,421
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 283,279,006 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  307,928,398 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 313,097,848 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  368,438,460 (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