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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:13:52                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              161/McLennan                                              VRSN:      P
                                                        161-906/La Vega ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               38,248,414        0.9206            41,547,267               15            1,320
           2           A               38,265,131        0.9494            40,304,541               12              739
           3           A               38,194,212        1.0442            36,577,487               12              527
           4           A               38,236,559        1.0401            36,762,387               12              368
           5           F1              19,856,558        1.0193            19,480,583                7              138
           6           F1              20,138,757        1.0566            19,059,963                7               24
           7           F1              19,431,332        0.9484            20,488,541                4                9
           8           L1              18,173,902        1.0199            17,819,298                7              161
           9           L1              19,133,079        0.9545            20,045,133                6               33
          10           L1              24,670,059        1.0148            24,310,267                3                5
  RANDOM TOTALS:                      274,348,003                         276,395,467               85            3,324
  CATG J  EXCEPTION VALUES:            16,738,176                          17,810,580
  CATG D1 EXCEPTION VALUES:             1,365,268                           1,272,153
  CATG F1 EXCEPTION VALUES:            18,218,335                          18,502,602
  CATG L1 EXCEPTION VALUES:             7,584,930                           7,838,347
 TOTAL TEST VALUES (4):               318,254,712                         321,819,149
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                16,090,957
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 305,728,192 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  318,254,712 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 337,910,106 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  394,416,727 (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