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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     14:24                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        100-904-100 Silsbee

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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         57,224,328    1.1586      49,390,927        9
  2      A  - Single-family Residences         57,224,328     .9031      63,364,332        9
  3      A  - Single-family Residences         57,224,328     .9354      61,176,318       17
  4      A  - Single-family Residences         57,224,328     .9513      60,153,819        7
  5      D  - Rural Real                       35,361,510     .9824      35,995,022       11
  6      F  - Commercial Real                   9,367,206     .8295      11,292,593        7
  7      F  - Commercial Real                   9,627,625     .9220      10,442,110        9
  8      F  - Commercial Real                   9,233,050     .8664      10,656,798        7
  9      L  - Commercial Personal               4,515,964    1.0031       4,502,008        7
 10      L  - Commercial Personal               4,607,311     .7931       5,809,243       10
 11      L  - Commercial Personal               4,767,168     .9845       4,842,222        4

Random Totals:                                306,377,146               317,625,392       97
 Cat J Exception Values:                       23,133,735                23,573,902
 Cat D1 Exception Values:                      22,722,200                22,407,905
 Other Exception Values:                       11,694,160                12,406,462
Exception Totals(3):                           57,550,095                58,388,269
Test Values(4):                               363,927,241               376,013,661

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                     18,800,683
Confidence Interval Values:
  State Lower Limit:                                      357,212,978  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                       363,927,241  (Within Confidence Interval Limits)
  State Upper Limit:                                      394,814,344  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       421,802,233  (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.