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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:53:03                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              015/Bexar                                                 VRSN:      P
                                                        015-912/Southwest ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              123,409,687        1.1473           107,565,316               44            2,895
           2           A              123,154,731        1.0178           121,000,915               43            2,150
           3           A              123,294,476        1.0223           120,604,985               49            1,772
           4           A              122,898,803        1.0193           120,571,768               53            1,234
           5           D3              67,680,018        0.9342            72,447,033               21            2,526
           6           F1              16,172,680        0.8744            18,495,746                8              140
           7           F1              15,907,539        0.9332            17,046,227                6               45
           8           F1              16,014,657        0.9042            17,711,410                5               18
           9           F1              16,086,473        1.0063            15,985,763                5                7
  RANDOM TOTALS:                      624,619,064                         611,429,163              234           10,787
  CATG D1 EXCEPTION VALUES:             4,369,711                           5,546,080
 TOTAL TEST VALUES (4):               628,988,775                         616,975,243
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                30,848,762
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 586,126,481 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  628,988,775 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 647,824,005 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  645,491,720 (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