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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
                                                        057-905-057 Dallas

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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      6,875,910,510     .9591   7,169,127,839       53
  2      A  - Single-family Residences      6,875,910,510     .9719   7,074,709,857      100
  3      A  - Single-family Residences      6,875,910,510     .9906   6,941,157,389      100
  4      A  - Single-family Residences      6,875,910,510    1.0114   6,798,408,651       99
  5      B  - Multi-family Residences       1,337,647,362     .8768   1,525,601,462       63
  6      B  - Multi-family Residences       1,344,406,002     .9960   1,349,805,223        7
  7      B  - Multi-family Residences       1,344,406,002     .9081   1,480,460,304        8
  8      B  - Multi-family Residences       1,324,130,084     .9735   1,360,174,714        6
  9      C  - Vacant Lots                     342,717,287     .6947     493,331,347       36
 10      C  - Vacant Lots                     342,572,985     .8524     401,892,286       13
 11      C  - Vacant Lots                     343,583,099     .8829     389,152,904        8
 12      C  - Vacant Lots                     341,562,871     .9589     356,202,806        7
 13      F  - Commercial Real               4,166,110,077    1.0019   4,158,209,479       18
 14      F  - Commercial Real               4,166,110,077     .9219   4,519,047,703       11
 15      F  - Commercial Real               4,199,424,930     .9931   4,228,602,286       10
 16      F  - Commercial Real               4,124,028,157     .9896   4,167,368,792        9
 17      L  - Commercial Personal           1,962,496,786    1.0544   1,861,245,055        7
 18      L  - Commercial Personal           1,962,496,786    1.0831   1,811,925,756        8
 19      L  - Commercial Personal           1,969,107,301     .9988   1,971,473,069        7
 20      L  - Commercial Personal           1,955,059,956     .9926   1,969,635,257        7

Random Totals:                             58,729,501,802            60,027,532,179      577
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                       1,273,571                 1,186,862
 Other Exception Values:                                0                         0
Exception Totals(3):                            1,273,571                 1,186,862
Test Values(4):                            58,730,775,373            60,028,719,041

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                  3,001,435,952
Confidence Interval Values:
  State Lower Limit:                                   57,027,283,089  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                    58,730,775,373  (Within Confidence Interval Limits)
  State Upper Limit:                                   63,030,154,993  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                    57,203,540,261  (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.