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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     13:13                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        035-901-035 Dimmitt

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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         13,048,588     .9406      13,872,622       10
  2      A  - Single-family Residences         13,037,604    1.0409      12,525,318        7
  3      A  - Single-family Residences         13,081,539    1.0018      13,058,035        7
  4      A  - Single-family Residences         13,004,653    1.1100      11,715,904        8
  5      D  - Rural Real                       20,393,520     .9760      20,895,000       10
  6      F  - Commercial Real                   2,781,625     .9889       2,812,848        7
  7      F  - Commercial Real                   2,782,789    1.0076       2,761,799        6
  8      F  - Commercial Real                   2,964,351     .9855       3,007,967        5
  9      F  - Commercial Real                   2,534,887     .9739       2,602,821        4

Random Totals:                                 83,629,556                83,252,314       64
 Cat J Exception Values:                        6,996,922                 6,960,231
 Cat D1 Exception Values:                      52,192,380                45,186,062
 Other Exception Values:                                0                         0
Exception Totals(3):                           59,189,302                52,146,293
Test Values(4):                               142,818,858               135,398,607

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      6,769,930
Confidence Interval Values:
  State Lower Limit:                                      128,628,677  (State Test Value Minus Margin of Error Value)
  State Upper Limit:                                      142,168,537  (State Test Value Plus Margin of Error Value)
  Local Test Value:                                       142,818,858  (Outside of ConfidenceInterval Limits)
Value Assigned (5):                                       207,158,132  (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.