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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     12:59                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        020-905-020 Brazosport

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                                                              (1)                         (2)
  (1)                  (1)                        (1)       Stratum         (1)         Sample
Stratum              Category                 Local Value    Ratio      State Value      Size
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  1      A  - Single-family Residences        362,900,579     .9525     380,997,983       46
  2      A  - Single-family Residences        362,289,892     .9800     369,683,563       50
  3      A  - Single-family Residences        362,595,235     .9801     369,957,387       49
  4      A  - Single-family Residences        362,442,564     .9874     367,067,616       49
  5      F  - Commercial Real                  66,970,324     .9104      73,561,428        9
  6      F  - Commercial Real                  66,998,522     .8725      76,789,137        7
  7      F  - Commercial Real                  67,139,512     .9709      69,151,830        7
  8      F  - Commercial Real                  66,772,937     .9606      69,511,698        6
  9      L  - Commercial Personal              54,951,133     .9915      55,422,222        7
 10      L  - Commercial Personal              55,575,840    1.0090      55,080,119        7
 11      L  - Commercial Personal              56,246,822    1.0142      55,459,300        7
 12      L  - Commercial Personal              53,053,872    1.0056      52,758,425        5

Random Totals:                              1,937,937,232             1,995,440,708      249
 Cat J Exception Values:                       84,128,648                89,951,988
 Cat D1 Exception Values:                       2,507,520                 2,615,802
 Other Exception Values:                                0                         0
Exception Totals(3):                           86,636,168                92,567,790
Test Values(4):                             2,024,573,400             2,088,008,498

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                    104,400,425
Confidence Interval Values:
  State Lower Limit:                                    1,983,608,073  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                     2,024,573,400  (Within Confidence Interval Limits)
  State Upper Limit:                                    2,192,408,923  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                     6,155,415,688  (See ISD Summary Worksheet)


Sources:

(1) See Stratified Ratio Detail Report VAL7214.
(2) Number of parcels sampled by staff.
(3) Exception value includes, if tested, D1, the J sample, and any parcels in A,B,C,D,F1,G or L1 marked as exception properties.
(4) Unstudied categories and sub-categories were not included in the test values.
(5) Includes local value of unstudied property categories and sub-categories.