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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:53:56                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              019/Bowie                                                 VRSN:      P
                                                        019-912/Pleasant Grove ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              109,246,383        0.9815           111,305,535               41            1,123
           2           A              109,332,297        1.0000           109,332,297               50              784
           3           A              109,395,010        0.9860           110,948,286               33              547
           4           A              109,154,493        0.9659           113,008,068               19              296
           5           D3              23,204,754        1.0521            22,055,654               10              580
           6           F1              24,181,681        0.9235            26,184,820                7               47
           7           F1              22,612,675        0.9999            22,614,936                5               11
           8           F1              28,559,791        1.0396            27,471,904                3                5
  RANDOM TOTALS:                      535,687,084                         542,921,500              168            3,393
  CATG D1 EXCEPTION VALUES:             3,925,986                           3,958,630
  CATG F1 EXCEPTION VALUES:            19,095,330                          19,125,334
 TOTAL TEST VALUES (4):               558,708,400                         566,005,464
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                28,300,273
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 537,705,191 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  558,708,400 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 594,305,737 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  591,317,919 (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