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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     12:43                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        008-902-008 Sealy

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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        206,268,210     .9366     220,230,846       50
  2      D  - Rural Real                       76,961,223    1.0196      75,481,780       28
  3      F  - Commercial Real                  50,666,828    1.0169      49,824,789       17
  4      L  - Commercial Personal              26,516,004     .9692      27,358,650       23

Random Totals:                                360,412,265               372,896,065      118
 Cat J Exception Values:                       24,195,421                25,491,325
 Cat D1 Exception Values:                      14,026,520                10,257,235
 Other Exception Values:                                0                         0
Exception Totals(3):                           38,221,941                35,748,560
Test Values(4):                               398,634,206               408,644,625

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                     20,432,231
Confidence Interval Values:
  State Lower Limit:                                      388,212,394  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                       398,634,206  (Within Confidence Interval Limits)
  State Upper Limit:                                      429,076,856  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       472,637,301  (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.