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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     13:41                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        060-902-060 Cooper

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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         10,867,915     .9259      11,737,677       17
  2      A  - Single-family Residences         10,854,193     .9893      10,971,589       16
  3      A  - Single-family Residences         10,922,804     .9594      11,385,036       15
  4      A  - Single-family Residences         10,813,027     .9627      11,231,980       18
  5      D  - Rural Real                       32,321,477     .8607      37,552,547       41
  6      F  - Commercial Real                   1,375,808    1.0560       1,302,848        7
  7      F  - Commercial Real                   1,416,444    1.0155       1,394,824        6
  8      F  - Commercial Real                   1,362,457     .9600       1,419,226        5
  9      F  - Commercial Real                   1,371,745     .9688       1,415,922        4
 10      L  - Commercial Personal               1,151,773    1.0201       1,129,079        8
 11      L  - Commercial Personal               1,104,414     .9465       1,166,840        5
 12      L  - Commercial Personal               1,323,213    1.0845       1,220,113        4

Random Totals:                                 84,885,270                91,927,681      146
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                      11,543,130                12,612,183
 Other Exception Values:                          418,640                   412,620
Exception Totals(3):                           11,961,770                13,024,803
Test Values(4):                                96,847,040               104,952,484

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      5,247,624
Confidence Interval Values:
  Local Test Value:                                        96,847,040  (Outside of ConfidenceInterval Limits)
  State Lower Limit:                                       99,704,860  (State Test Value Minus Margin of Error Value)
  State Upper Limit:                                      110,200,108  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                        93,339,823  (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.