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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:02:52                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              085/Garza                                                 VRSN:      P
                                                        085-902/Post ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                8,022,305        1.1808             6,793,957                8              487
           2           A                8,024,532        0.8389             9,565,541                7              260
           3           A                8,029,458        0.8147             9,855,724                7              162
           4           A                8,031,592        0.9267             8,666,874                7               97
           5           D3              17,018,660        0.9281            18,337,097               10            2,752
           6           G1             249,069,790        1.0465           238,002,666               18              453
  RANDOM TOTALS:                      298,196,337                         291,221,859               57            4,211
  CATG J  EXCEPTION VALUES:            13,884,563                          13,630,960
  CATG D1 EXCEPTION VALUES:            19,681,100                          20,034,706
 TOTAL TEST VALUES (4):               331,762,000                         324,887,525
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                16,244,376
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 308,643,149 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  331,762,000 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 341,131,901 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  358,424,070 (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