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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     16:44                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        219-903-219 Tulia

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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         13,691,077     .9271      14,767,638       13
  2      A  - Single-family Residences         13,708,364     .9800      13,988,127        8
  3      A  - Single-family Residences         13,650,742    1.0330      13,214,658        7
  4      A  - Single-family Residences         13,691,077    1.0171      13,460,896        8
  5      D  - Rural Real                       17,479,510    1.0272      17,016,657       12
  6      F  - Commercial Real                   1,960,262     .9674       2,026,320        8
  7      F  - Commercial Real                   2,046,318     .9624       2,126,266        5
  8      F  - Commercial Real                   2,078,590     .9714       2,139,788        6
  9      L  - Commercial Personal               2,218,736    1.0060       2,205,503        8
 10      L  - Commercial Personal               2,202,915     .9843       2,238,052        7
 11      L  - Commercial Personal               2,719,441     .9805       2,773,525        6

Random Totals:                                 85,447,032                85,957,430       88
 Cat J Exception Values:                        6,322,294                 6,258,678
 Cat D1 Exception Values:                      24,446,030                24,559,309
 Other Exception Values:                        1,872,867                 1,839,321
Exception Totals(3):                           32,641,191                32,657,308
Test Values(4):                               118,088,223               118,614,738

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      5,930,737
Confidence Interval Values:
  State Lower Limit:                                      112,684,001  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                       118,088,223  (Within Confidence Interval Limits)
  State Upper Limit:                                      124,545,475  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       120,217,329  (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.