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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     17:09                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        018-908-018 Cranfills Gap

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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          1,124,253     .8844       1,271,204        7
  2      A  - Single-family Residences          1,103,217     .8870       1,243,762        6
  3      A  - Single-family Residences          1,141,082     .9421       1,211,211        7
  4      A  - Single-family Residences          1,084,518    1.0052       1,078,908        5
  5      D  - Rural Real                       22,924,670    1.0169      22,543,682       10

Random Totals:                                 27,377,740                27,348,767       35
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                       4,315,960                 4,002,382
 Other Exception Values:                                0                         0
Exception Totals(3):                            4,315,960                 4,002,382
Test Values(4):                                31,693,700                31,351,149

Margin of Error Percent:                                    7.5838496
Margin of Error Value:                                      2,377,624
Confidence Interval Values:
  State Lower Limit:                                       28,973,525  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                        31,693,700  (Within Confidence Interval Limits)
  State Upper Limit:                                       33,728,773  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                        31,861,222  (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.