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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     13:26                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        045-902-045 Columbus

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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        177,532,506     .9829     180,621,127       45
  2      D  - Rural Real                      155,546,042     .9846     157,978,917       39
  3      F  - Commercial Real                  53,759,201     .9765      55,052,945       15
  4      G  - Oil, Gas, Minerals               19,032,131     .9519      19,993,834       12
  5      L  - Commercial Personal              21,324,040    1.0024      21,272,985       10

Random Totals:                                427,193,920               434,919,808      121
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                      24,120,728                23,501,911
 Other Exception Values:                        6,678,056                 6,655,196
Exception Totals(3):                           30,798,784                30,157,107
Test Values(4):                               457,992,704               465,076,915

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                     23,253,846
Confidence Interval Values:
  State Lower Limit:                                      441,823,069  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                       457,992,704  (Within Confidence Interval Limits)
  State Upper Limit:                                      488,330,761  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       462,687,996  (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.