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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     13:39                                      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      2,037,443,817     .9612   2,119,687,700      100
  2      A  - Single-family Residences      2,037,443,817     .9715   2,097,214,428      100
  3      A  - Single-family Residences      2,037,443,817     .9590   2,124,550,383      100
  4      A  - Single-family Residences      2,037,443,817     .9794   2,080,297,955      100
  5      B  - Multi-family Residences         290,610,357     .9439     307,882,569       17
  6      B  - Multi-family Residences         290,731,849     .9900     293,668,534        7
  7      B  - Multi-family Residences         285,993,637     .9988     286,337,242        6
  8      B  - Multi-family Residences         286,722,593     .9449     303,442,262        5
  9      F  - Commercial Real                 937,010,555    1.0053     932,070,581        8
 10      F  - Commercial Real                 940,160,171     .8069   1,165,150,788        7
 11      F  - Commercial Real                 933,073,536     .8746   1,066,857,462        7
 12      F  - Commercial Real                 930,317,623     .9576     971,509,631        5
 13      L  - Commercial Personal             329,961,153    1.0141     325,373,388        8
 14      L  - Commercial Personal             329,267,666    1.1606     283,704,692        7
 15      L  - Commercial Personal             332,735,101    1.1385     292,257,445        7
 16      L  - Commercial Personal             325,800,230     .9986     326,256,990        7

Random Totals:                             14,362,159,739            14,976,262,050      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):                            14,362,170,783            14,976,274,006

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                    748,813,700
Confidence Interval Values:
  State Lower Limit:                                   14,227,460,306  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                    14,362,170,783  (Within Confidence Interval Limits)
  State Upper Limit:                                   15,725,087,706  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                    16,117,616,648  (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.