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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
                                                        220-915-220 Azle

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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        232,897,051     .8578     271,505,072       49
  2      A  - Single-family Residences        232,309,422     .9248     251,199,635       48
  3      A  - Single-family Residences        232,505,298    1.0073     230,820,310       50
  4      A  - Single-family Residences        232,505,298     .9847     236,117,902       41
  5      C  - Vacant Lots                      18,292,271     .9509      19,236,798        7
  6      C  - Vacant Lots                      18,821,481     .9519      19,772,540        8
  7      C  - Vacant Lots                      17,563,648    1.0136      17,327,987        7
  8      C  - Vacant Lots                      18,184,895     .9795      18,565,487        7
  9      F  - Commercial Real                  23,548,096     .8175      28,805,010        7
 10      F  - Commercial Real                  23,597,443     .8311      28,393,025        6
 11      F  - Commercial Real                  23,755,351     .9614      24,709,123        6
 12      F  - Commercial Real                  22,857,247     .8697      26,281,760        5

Random Totals:                              1,096,837,501             1,172,734,649      241
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                       1,992,096                 1,696,459
 Other Exception Values:                        1,027,230                 1,009,300
Exception Totals(3):                            3,019,326                 2,705,759
Test Values(4):                             1,099,856,827             1,175,440,408

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                     58,772,020
Confidence Interval Values:
  Local Test Value:                                     1,099,856,827  (Outside of ConfidenceInterval Limits)
  State Lower Limit:                                    1,116,668,388  (State Test Value Minus Margin of Error Value)
  State Upper Limit:                                    1,234,212,428  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                     1,135,926,273  (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.