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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:23:39                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              231/Upton                                                 VRSN:      W
                                                        231-902/Rankin ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                1,764,206        0.8374             2,106,766                7              133
           2           A                1,758,476        0.9432             1,864,372               10               71
           3           A                1,768,267        0.9362             1,888,771               10               47
           4           A                1,765,397        1.0380             1,700,768                7               28
           5           G1             356,795,440        1.0151           351,487,972               17              577
  RANDOM TOTALS:                      363,851,786                         359,048,649               51              856
  CATG J  EXCEPTION VALUES:            11,741,131                          11,845,378
  CATG D1 EXCEPTION VALUES:             1,837,570                           3,660,167
 TOTAL TEST VALUES (4):               377,430,487                         374,554,194
 MARGIN OF ERROR PERCENT:               5.0000001
 MARGIN OF ERROR VALUE:                18,727,710
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 355,826,484 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  377,430,487 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 393,281,904 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  444,634,911 (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