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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     19:54                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        147-901-147 Coolidge

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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          1,796,601     .8786       2,044,845       11
  2      A  - Single-family Residences          1,787,581     .9459       1,889,820       12
  3      A  - Single-family Residences          1,789,836     .9466       1,890,805       12
  4      A  - Single-family Residences          1,772,546    1.0817       1,638,667        8
  5      D  - Rural Real                        6,907,225     .9580       7,210,047       21

Random Totals:                                 14,053,789                14,674,184       64
 Cat J Exception Values:                        2,297,845                 2,374,588
 Cat D1 Exception Values:                       4,647,340                 4,734,759
 Other Exception Values:                                0                         0
Exception Totals(3):                            6,945,185                 7,109,347
Test Values(4):                                20,998,974                21,783,531

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      1,089,177
Confidence Interval Values:
  State Lower Limit:                                       20,694,354  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                        20,998,974  (Within Confidence Interval Limits)
  State Upper Limit:                                       22,872,708  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                        21,768,820  (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.