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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     21:54                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        252-903-252 Olney

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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          9,325,142    1.0706       8,710,202        7
  2      A  - Single-family Residences          9,317,292     .9621       9,684,328        9
  3      A  - Single-family Residences          9,321,217    1.0312       9,039,194        8
  4      A  - Single-family Residences          9,317,292     .8989      10,365,215        8
  5      D  - Rural Real                        7,468,818    1.1578       6,450,871       10
  6      F  - Commercial Real                   1,305,793     .9834       1,327,835        7
  7      F  - Commercial Real                   1,287,905     .9821       1,311,379        7
  8      F  - Commercial Real                   1,335,063    1.0102       1,321,583        6
  9      G  - Oil, Gas, Minerals                8,286,684    1.0065       8,233,168       12

Random Totals:                                 56,965,206                56,443,775       74
 Cat J Exception Values:                        5,946,400                 5,538,013
 Cat D1 Exception Values:                       9,035,815                 9,875,127
 Other Exception Values:                        1,185,281                 1,195,200
Exception Totals(3):                           16,167,496                16,608,340
Test Values(4):                                73,132,702                73,052,115

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      3,652,606
Confidence Interval Values:
  State Lower Limit:                                       69,399,509  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                        73,132,702  (Within Confidence Interval Limits)
  State Upper Limit:                                       76,704,721  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                        94,584,435  (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.