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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     18:28                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        081-905-081 Wortham

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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          4,345,173     .9582       4,534,724       15
  2      A  - Single-family Residences          4,323,265    1.0144       4,261,894       13
  3      A  - Single-family Residences          4,383,513    1.1126       3,939,882       13
  4      A  - Single-family Residences          4,301,356    1.0774       3,992,348       15
  5      D  - Rural Real                       16,912,350    1.0115      16,720,069       22

Random Totals:                                 34,265,657                33,448,917       78
 Cat J Exception Values:                       11,959,088                12,122,887
 Cat D1 Exception Values:                       4,501,370                 4,479,611
 Other Exception Values:                                0                         0
Exception Totals(3):                           16,460,458                16,602,498
Test Values(4):                                50,726,115                50,051,415

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      2,502,571
Confidence Interval Values:
  State Lower Limit:                                       47,548,844  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                        50,726,115  (Within Confidence Interval Limits)
  State Upper Limit:                                       52,553,986  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                        80,994,618  (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.