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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:11:23                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              093/Grimes                                                VRSN:      W
                                                        093-904/Navasota ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               52,042,892        0.9999            52,048,097               8            1,362         .011362102
      2           A               52,036,902        0.9961            52,240,640              11              750         .003219852
      3           A               52,035,282        0.9677            53,772,122              10              501         .005673263
      4           A               51,913,769        0.9924            52,311,335              10              299         .005969957
      5           D3             161,822,175        0.9472           170,842,668              35            6,668         .013226676
      6           F1              11,659,455        0.8789            13,265,963               7              186         .057863174
      7           F1              11,633,507        0.8808            13,207,887               6               57         .045813724
      8           F1              22,986,106        0.9202            24,979,468               8               31         .141769008
      9           G1              13,303,960        1.1086            12,000,686               6               45         .006232635
     10           G1              13,691,664        1.0490            13,052,111               5               21         .011661296
     11           G1              14,042,828        0.9033            15,546,140               4               12         .069308979
     12           G1              11,880,047        1.0260            11,578,993               3                6         .006118315
     13           L1               8,994,410        0.8366            10,751,148               7              251         .045712697
     14           L1              26,798,512        0.8799            30,456,315              13               79         .017542678
  RANDOM TOTALS:                 504,841,509                         526,053,573             133           10,268
  CATG J  EXCEPTION VALUES:       43,078,161                          43,596,613
  CATG D1 EXCEPTION VALUES:       19,615,830                          20,215,283
 TOTAL TEST VALUES (4):          567,535,500                         589,865,469
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           29,493,273
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            560,372,196 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             567,535,500 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            619,358,742 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             751,374,183 (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