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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     14:01                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        076-904-076 Rotan

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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          2,822,552     .8311       3,396,164       14
  2      A  - Single-family Residences          2,841,567     .9029       3,147,156       12
  3      A  - Single-family Residences          2,822,552     .8751       3,225,405       12
  4      A  - Single-family Residences          2,807,102    1.0584       2,652,213       11
  5      D  - Rural Real                        9,298,711     .9715       9,571,499       27
  6      G  - Oil, Gas, Minerals                1,527,002    1.0030       1,522,435       26
  7      L  - Commercial Personal                 754,599     .9757         773,392        8
  8      L  - Commercial Personal                 733,442    1.0131         723,958       10

Random Totals:                                 23,607,527                25,012,222      120
 Cat J Exception Values:                        3,991,319                 4,053,353
 Cat D1 Exception Values:                      12,540,130                14,566,446
 Other Exception Values:                        3,739,377                 3,453,329
Exception Totals(3):                           20,270,826                22,073,128
Test Values(4):                                43,878,353                47,085,350

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      2,354,268
Confidence Interval Values:
  Local Test Value:                                        43,878,353  (Outside of ConfidenceInterval Limits)
  State Lower Limit:                                       44,731,082  (State Test Value Minus Margin of Error Value)
  State Upper Limit:                                       49,439,618  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                        50,159,155  (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.