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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     20:33                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        182-905-182 Strawn

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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          2,086,766     .9596       2,174,621        7
  2      A  - Single-family Residences          2,085,012    1.1433       1,823,679        7
  3      A  - Single-family Residences          2,130,624    1.0797       1,973,348        6
  4      A  - Single-family Residences          2,036,768     .9458       2,153,487        6
  5      D  - Rural Real                        6,445,141    1.0050       6,413,076       11
  6      G  - Oil, Gas, Minerals               22,468,130    1.0247      21,926,544       41

Random Totals:                                 37,252,441                36,464,755       78
 Cat J Exception Values:                        3,753,377                 3,892,815
 Cat D1 Exception Values:                       3,400,683                 3,659,010
 Other Exception Values:                                0                         0
Exception Totals(3):                            7,154,060                 7,551,825
Test Values(4):                                44,406,501                44,016,580

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      2,200,829
Confidence Interval Values:
  State Lower Limit:                                       41,815,751  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                        44,406,501  (Within Confidence Interval Limits)
  State Upper Limit:                                       46,217,409  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                        49,037,034  (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.