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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     18:20                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        073-904-073 Westphalia

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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            808,702     .9402         860,138       10
  2      A  - Single-family Residences            777,125    1.0183         763,159       12
  3      A  - Single-family Residences            774,134     .9663         801,132        9
  4      D  - Rural Real                        4,516,740     .9666       4,672,812       20

Random Totals:                                  6,876,701                 7,097,241       51
 Cat J Exception Values:                           51,947                    68,081
 Cat D1 Exception Values:                       1,991,260                 2,189,046
 Other Exception Values:                          769,850                   669,817
Exception Totals(3):                            2,813,057                 2,926,944
Test Values(4):                                 9,689,758                10,024,185

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                        501,209
Confidence Interval Values:
  State Lower Limit:                                        9,522,976  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                         9,689,758  (Within Confidence Interval Limits)
  State Upper Limit:                                       10,525,394  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                         9,925,267  (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.