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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     14:45                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        109-901-109 Abbott

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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          3,238,117     .9512       3,404,244       10
  2      A  - Single-family Residences          3,286,018    1.0438       3,148,130        9
  3      A  - Single-family Residences          3,249,066    1.0726       3,029,150       13
  4      A  - Single-family Residences          3,234,011    1.0904       2,965,894       12
  5      D  - Rural Real                       12,297,270     .9951      12,357,823        9

Random Totals:                                 25,304,482                24,905,241       53
 Cat J Exception Values:                        3,644,640                 3,736,858
 Cat D1 Exception Values:                       6,118,282                 3,903,831
 Other Exception Values:                                0                         0
Exception Totals(3):                            9,762,922                 7,640,689
Test Values(4):                                35,067,404                32,545,930

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      1,627,297
Confidence Interval Values:
  State Lower Limit:                                       30,918,633  (State Test Value Minus Margin of Error Value)
  State Upper Limit:                                       34,173,227  (State Test Value Plus Margin of Error Value)
  Local Test Value:                                        35,067,404  (Outside of ConfidenceInterval Limits)
Value Assigned (5):                                        33,977,350  (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.