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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     14:33                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        102-903-102 Waskom

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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         13,385,070     .7641      17,517,432        7
  2      A  - Single-family Residences         13,407,604    1.0273      13,051,303        7
  3      A  - Single-family Residences         13,368,170     .9794      13,649,347        7
  4      A  - Single-family Residences         13,345,636     .9674      13,795,365        7
  5      D  - Rural Real                        9,429,510     .9043      10,427,413       10
  6      G  - Oil, Gas, Minerals               80,691,270     .9644      83,669,919       21

Random Totals:                                143,627,260               152,110,779       59
 Cat J Exception Values:                        4,636,727                 4,779,169
 Cat D1 Exception Values:                       5,721,610                 5,466,683
 Other Exception Values:                                0                         0
Exception Totals(3):                           10,358,337                10,245,852
Test Values(4):                               153,985,597               162,356,631

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      8,117,832
Confidence Interval Values:
  Local Test Value:                                       153,985,597  (Outside of ConfidenceInterval Limits)
  State Lower Limit:                                      154,238,799  (State Test Value Minus Margin of Error Value)
  State Upper Limit:                                      170,474,463  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       207,708,091  (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.