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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     16:50                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        220-905-220 Fort Worth

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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      2,413,925,966     .9372   2,575,678,581       99
  2      A  - Single-family Residences      2,411,894,897     .9750   2,473,738,356      102
  3      A  - Single-family Residences      2,408,848,293     .9892   2,435,147,890      101
  4      A  - Single-family Residences      2,408,848,293     .9946   2,421,926,697      102
  5      B  - Multi-family Residences         317,715,818    1.3422     236,712,724       57
  6      B  - Multi-family Residences         320,254,338     .9153     349,890,023       13
  7      B  - Multi-family Residences         320,254,338     .9984     320,767,566        7
  8      B  - Multi-family Residences         310,901,896     .9933     312,998,989       10
  9      C  - Vacant Lots                      74,573,845    1.0398      71,719,412       14
 10      C  - Vacant Lots                      74,010,788     .7490      98,812,801        9
 11      C  - Vacant Lots                      74,511,283     .7862      94,773,954        8
 12      C  - Vacant Lots                      74,010,788    1.0109      73,212,769        7
 13      F  - Commercial Real                 963,772,189    1.0422     924,747,831       13
 14      F  - Commercial Real                 967,830,178     .8280   1,168,877,027       17
 15      F  - Commercial Real                 960,120,000     .9520   1,008,529,412        7
 16      F  - Commercial Real                 963,366,391     .9475   1,016,745,531        7
 17      L  - Commercial Personal             558,926,542     .9497     588,529,580       11
 18      L  - Commercial Personal             560,102,735    1.0017     559,152,176        8
 19      L  - Commercial Personal             564,337,027    1.0140     556,545,392        8
 20      L  - Commercial Personal             551,398,912    1.0109     545,453,469        7

Random Totals:                             17,299,604,517            17,833,960,180      607
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                       1,531,685                 1,377,541
 Other Exception Values:                                0                         0
Exception Totals(3):                            1,531,685                 1,377,541
Test Values(4):                            17,301,136,202            17,835,337,721

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                    891,766,886
Confidence Interval Values:
  State Lower Limit:                                   16,943,570,835  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                    17,301,136,202  (Within Confidence Interval Limits)
  State Upper Limit:                                   18,727,104,607  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                    16,953,346,044  (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.