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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:35:05                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              015/Bexar                                                 VRSN:      W
                                                        015-911/East Central ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              173,064,657        0.9380           184,503,899              37            2,960         .051086108
      2           A              171,872,854        0.9585           179,314,402              57            2,104         .020324046
      3           A              171,810,509        0.9321           184,326,262              34            1,624         .016676967
      4           A              171,980,986        0.9755           176,300,344              28            1,016         .009371851
      5           D3             127,888,262        0.9734           131,383,051              11            5,241         .011244270
      6           F1              39,221,211        0.8006            48,989,771               7              252         .071099675
      7           F1              39,319,728        0.9212            42,683,161               7               96         .021131761
      8           F1              39,143,990        0.9535            41,052,952               6               36         .016835426
      9           F1              38,154,145        0.9991            38,188,515               4               11         .001790194
     10           L1              34,017,041        1.1079            30,704,072               7              258         .018590636
     11           L1              34,202,228        1.0433            32,782,736               6               42         .014336055
     12           L1              35,220,388        1.0169            34,635,056               5               14         .000302002
     13           L1              31,560,914        0.9494            33,243,010               4                5         .002788179
  RANDOM TOTALS:               1,107,456,913                       1,158,107,231             213           13,659
  CATG D1 EXCEPTION VALUES:        7,296,019                          11,911,036
 TOTAL TEST VALUES (4):        1,114,752,932                       1,170,018,267
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           58,500,913
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,111,517,354 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,114,752,932 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,228,519,180 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,210,193,436 (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