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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     19:49                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        144-901-144 Giddings

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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         28,051,675     .9838      28,513,595       15
  2      A  - Single-family Residences         28,028,073     .9197      30,475,234       12
  3      A  - Single-family Residences         27,980,867    1.0110      27,676,426        9
  4      A  - Single-family Residences         28,051,675     .9853      28,470,187        7
  5      D  - Rural Real                      104,803,755     .9300     112,692,210       28
  6      F  - Commercial Real                  13,491,488     .9902      13,625,013        7
  7      F  - Commercial Real                  13,435,038     .9055      14,837,149        7
  8      F  - Commercial Real                  13,841,476    1.0032      13,797,325        7
  9      F  - Commercial Real                  12,870,541     .9866      13,045,349        6
 10      G  - Oil, Gas, Minerals               67,756,289     .9880      68,579,240       33
 11      L  - Commercial Personal               7,643,896    1.1170       6,843,237        7
 12      L  - Commercial Personal               7,551,146     .9852       7,664,582        7
 13      L  - Commercial Personal               7,902,957    1.0738       7,359,804        6
 14      L  - Commercial Personal               7,292,085    1.1110       6,563,533        5

Random Totals:                                368,700,961               380,142,884      156
 Cat J Exception Values:                       14,291,680                14,649,138
 Cat D1 Exception Values:                      11,024,029                11,149,006
 Other Exception Values:                                0                         0
Exception Totals(3):                           25,315,709                25,798,144
Test Values(4):                               394,016,670               405,941,028

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                     20,297,051
Confidence Interval Values:
  State Lower Limit:                                      385,643,977  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                       394,016,670  (Within Confidence Interval Limits)
  State Upper Limit:                                      426,238,079  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       411,925,457  (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.