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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     17:20                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        249-905-249 Decatur

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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         60,449,262     .9468      63,845,862       21
  2      A  - Single-family Residences         60,474,833     .9925      60,931,822       19
  3      A  - Single-family Residences         60,628,258     .9673      62,677,823       42
  4      A  - Single-family Residences         61,420,951     .9803      62,655,260       19
  5      D  - Rural Real                      164,218,360    1.0344     158,757,115       43
  6      F  - Commercial Real                  25,255,534     .9868      25,593,366        9
  7      F  - Commercial Real                  25,138,904     .9315      26,987,551        6
  8      F  - Commercial Real                  24,523,950    1.0229      23,974,924        8
  9      F  - Commercial Real                  25,785,667     .9260      27,846,293        5
 10      G  - Oil, Gas, Minerals              187,172,200    1.0791     173,452,136       13
 11      L  - Commercial Personal              13,975,920    1.0561      13,233,520        7
 12      L  - Commercial Personal              13,958,479    1.0148      13,754,906        6
 13      L  - Commercial Personal              16,219,974    1.0000      16,219,974        4

Random Totals:                                739,222,292               729,930,552      202
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                       6,943,482                 6,632,101
 Other Exception Values:                        7,366,670                 7,607,815
Exception Totals(3):                           14,310,152                14,239,916
Test Values(4):                               753,532,444               744,170,468

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                     37,208,523
Confidence Interval Values:
  State Lower Limit:                                      706,961,945  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                       753,532,444  (Within Confidence Interval Limits)
  State Upper Limit:                                      781,378,991  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       854,360,526  (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.