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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     21:35                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        237-904-237 Waller

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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        107,363,756    1.0381     103,423,327       16
  2      A  - Single-family Residences        106,508,448     .9642     110,463,024       24
  3      A  - Single-family Residences        106,868,578     .9799     109,060,698       16
  4      A  - Single-family Residences        106,823,561     .9951     107,349,574       21
  5      C  - Vacant Lots                      11,848,397    1.0453      11,334,925        8
  6      C  - Vacant Lots                      11,868,335    1.0945      10,843,614        9
  7      C  - Vacant Lots                      11,923,166    1.0070      11,840,284       13
  8      C  - Vacant Lots                      11,713,812    1.0685      10,962,856        8
  9      D  - Rural Real                      309,252,580     .9809     315,274,320       23
 10      F  - Commercial Real                  14,014,987     .9525      14,713,897       16
 11      F  - Commercial Real                  14,096,843    1.0265      13,732,921       11
 12      F  - Commercial Real                  15,061,580     .9269      16,249,412        8
 13      F  - Commercial Real                  12,366,165    1.1303      10,940,604        2

Random Totals:                                839,710,208               846,189,456      175
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                      25,049,020                20,782,758
 Other Exception Values:                                0                         0
Exception Totals(3):                           25,049,020                20,782,758
Test Values(4):                               864,759,228               866,972,214

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                     43,348,611
Confidence Interval Values:
  State Lower Limit:                                      823,623,603  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                       864,759,228  (Within Confidence Interval Limits)
  State Upper Limit:                                      910,320,825  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       933,077,786  (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.