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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     17:58                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        057-916-057 Richardson

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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      2,037,356,957     .9612   2,119,597,334      100
  2      A  - Single-family Residences      2,037,356,957     .9715   2,097,125,020      100
  3      A  - Single-family Residences      2,037,356,957     .9590   2,124,459,809      100
  4      A  - Single-family Residences      2,037,356,957     .9794   2,080,209,268      100
  5      B  - Multi-family Residences         289,387,789     .9439     306,587,339       17
  6      B  - Multi-family Residences         289,508,770     .9900     292,433,101        7
  7      B  - Multi-family Residences         284,790,491     .9988     285,132,650        6
  8      B  - Multi-family Residences         285,516,380     .9449     302,165,711        5
  9      F  - Commercial Real                 930,390,431    1.0053     925,485,359        8
 10      F  - Commercial Real                 933,517,793     .8069   1,156,918,816        7
 11      F  - Commercial Real                 926,481,227     .8746   1,059,319,949        7
 12      F  - Commercial Real                 923,744,785     .9576     964,645,765        5
 13      L  - Commercial Personal             332,535,859    1.0141     327,912,296        8
 14      L  - Commercial Personal             331,836,960    1.1606     285,918,456        7
 15      L  - Commercial Personal             335,331,452    1.1385     294,537,946        7
 16      L  - Commercial Personal             328,342,468     .9986     328,802,792        7

Random Totals:                             14,340,812,233            14,951,251,611      491
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                          11,044                    11,956
 Other Exception Values:                                0                         0
Exception Totals(3):                               11,044                    11,956
Test Values(4):                            14,340,823,277            14,951,263,567

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                    747,563,178
Confidence Interval Values:
  State Lower Limit:                                   14,203,700,389  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                    14,340,823,277  (Within Confidence Interval Limits)
  State Upper Limit:                                   15,698,826,745  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                    16,074,581,181  (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.