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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:15:43                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              196/Refugio                                               VRSN:      W
                                                        196-903/Refugio ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               10,511,420        0.8461            12,423,378               8              522         .009673672
      2           A               10,483,747        0.8230            12,738,453              12              297         .047170336
      3           A               10,464,546        0.9664            10,828,380               8              180         .011546320
      4           A               10,483,596        0.9959            10,526,756               8               97         .003459170
      5           D3              11,270,970        0.8651            13,028,517              13            2,280         .051046811
      6           G1              38,982,443        0.9942            39,209,860               7               55         .013351766
      7           G1              39,583,990        0.9966            39,719,035               5               15         .006669123
      8           G1              54,028,920        0.9626            56,128,111               3                5         .008692261
  RANDOM TOTALS:                 185,809,632                         194,602,490              64            3,451
  CATG J  EXCEPTION VALUES:       27,444,252                          29,275,954
  CATG D1 EXCEPTION VALUES:       12,634,650                          14,893,618
  CATG G1 EXCEPTION VALUES:       93,858,704                          95,137,383
 TOTAL TEST VALUES (4):          319,747,238                         333,909,445
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           16,695,472
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            317,213,973 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             319,747,238 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            350,604,917 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             390,542,663 (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