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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:08:59                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              079/Fort Bend                                             VRSN:      W
                                                        079-910/Stafford MSD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              101,965,384        0.9770           104,365,797              31              976         .002899605
      2           A              101,885,258        0.9854           103,394,822              39              732         .004826299
      3           A              102,004,651        0.9665           105,540,249              31              602         .001700387
      4           A              101,816,097        0.9819           103,692,939              30              494         .003802740
      5           B              131,997,840        1.0270           128,527,595              10               27         .009393643
      6           F1             124,799,784        0.9251           134,904,101              10              227         .023025703
      7           F1             126,008,641        0.9937           126,807,528               8               70         .004221970
      8           F1             125,424,743        1.0018           125,199,384               7               28         .003851095
      9           F1             121,641,123        0.9774           124,453,778               5               10         .001929141
     10           L1              71,331,629        0.9868            72,285,802               7              888         .000468785
     11           L1              71,967,277        0.9770            73,661,491               7               92         .001904404
     12           L1              75,465,647        0.9568            78,872,959               7               30         .008627371
     13           L1              66,496,030        0.9346            71,149,187               4                9         .012625562
  RANDOM TOTALS:               1,322,804,104                       1,352,855,632             196            4,185
  CATG D1 EXCEPTION VALUES:           55,380                              59,732
 TOTAL TEST VALUES (4):        1,322,859,484                       1,352,915,364
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           67,645,768
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,285,269,596 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,322,859,484 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,420,561,132 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,592,273,351 (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