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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:33:56                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              196/Refugio                                               VRSN:      W
                                                        196-901/Austwell-Tivoli ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           D3               5,605,050        0.9706             5,774,830              13            1,377         .003710211
      2           G1              88,745,076        1.0354            85,710,910               4               10         .011310662
  RANDOM TOTALS:                  94,350,126                          91,485,740              17            1,387
  CATG J  EXCEPTION VALUES:       14,456,539                          13,333,569
  CATG D1 EXCEPTION VALUES:       15,492,110                          19,537,936
  CATG G1 EXCEPTION VALUES:      300,019,090                         304,174,274
 TOTAL TEST VALUES (4):          424,317,865                         428,531,519
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           21,426,576
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            407,104,943 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             424,317,865 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            449,958,095 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             475,231,017 (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