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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     18:14                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        070-903-070 Ennis

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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        110,511,909    1.0344     106,836,726       15
  2      A  - Single-family Residences        110,558,440    1.0623     104,074,593       10
  3      A  - Single-family Residences        110,511,909     .9917     111,436,835       10
  4      A  - Single-family Residences        110,465,377    1.0151     108,822,162       10
  5      D  - Rural Real                      107,238,710    1.0751      99,747,661       16
  6      F  - Commercial Real                  25,526,387    1.0624      24,027,096       10
  7      F  - Commercial Real                  25,430,142     .9147      27,801,620       13
  8      F  - Commercial Real                  25,889,980     .9101      28,447,401       10
  9      F  - Commercial Real                  24,735,037     .9405      26,299,880        7
 10      L  - Commercial Personal              13,113,695     .9066      14,464,698        5
 11      L  - Commercial Personal              13,157,775    1.0324      12,744,842        9
 12      L  - Commercial Personal              13,967,738     .9850      14,180,445        6

Random Totals:                                691,107,099               678,883,959      121
 Cat J Exception Values:                       46,229,266                47,288,063
 Cat D1 Exception Values:                      12,023,520                11,919,149
 Other Exception Values:                       13,444,650                13,189,409
Exception Totals(3):                           71,697,436                72,396,621
Test Values(4):                               762,804,535               751,280,580

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                     37,564,029
Confidence Interval Values:
  State Lower Limit:                                      713,716,551  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                       762,804,535  (Within Confidence Interval Limits)
  State Upper Limit:                                      788,844,609  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                     1,165,187,625  (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.