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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:52:47                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              015/Bexar                                                 VRSN:      P
                                                        015-901/Alamo Heights ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              587,142,668        0.9803           598,941,822               41            3,769
           2           A              586,605,486        0.9782           599,678,477               36            2,029
           3           A              586,768,173        0.9745           602,122,291               41            1,279
           4           A              586,829,922        0.9982           587,888,121               46              629
           5           F1             164,308,668        0.8510           193,077,166                7              211
           6           F1             162,559,193        0.9330           174,232,790                6               35
           7           F1             175,657,185        0.8709           201,696,159                5               15
           8           F1             150,160,675        0.9460           158,732,215                4                5
           9           L1              56,281,326        1.0743            52,388,836                7              554
          10           L1              56,183,576        1.0402            54,012,282                7               98
          11           L1              57,706,131        1.0914            52,873,494                6               23
          12           L1              53,892,726        1.0374            51,949,803                4                9
  RANDOM TOTALS:                    3,224,095,729                       3,327,593,456              210            8,656
 TOTAL TEST VALUES (4):             3,224,095,729                       3,327,593,456
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:               166,379,673
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               3,161,213,783 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                3,224,095,729 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               3,493,973,129 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                3,204,386,913 (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