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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     16:53                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        225-905-225 Winfield

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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          1,796,138     .9799       1,832,981        7
  2      A  - Single-family Residences          1,825,509     .9956       1,833,577        6
  3      A  - Single-family Residences          1,783,336     .9607       1,856,288        6
  4      A  - Single-family Residences          1,748,693    1.0331       1,692,666        5
  5      D  - Rural Real                        5,829,279     .9861       5,911,448       10

Random Totals:                                 12,982,955                13,126,960       34
 Cat J Exception Values:                        2,827,808                 2,770,026
 Cat D1 Exception Values:                       2,540,199                 1,522,771
 Other Exception Values:                                0                         0
Exception Totals(3):                            5,368,007                 4,292,797
Test Values(4):                                18,350,962                17,419,757

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                        870,988
Confidence Interval Values:
  State Lower Limit:                                       16,548,769  (State Test Value Minus Margin of Error Value)
  State Upper Limit:                                       18,290,745  (State Test Value Plus Margin of Error Value)
  Local Test Value:                                        18,350,962  (Outside of ConfidenceInterval Limits)
Value Assigned (5):                                        57,478,365  (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.