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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     13:52                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        070-905-070 Ferris

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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         43,377,872     .9557      45,388,586       12
  2      A  - Single-family Residences         43,359,607     .9859      43,979,721       20
  3      A  - Single-family Residences         43,396,136    1.0279      42,218,247       22
  4      A  - Single-family Residences         43,377,872    1.0731      40,422,954       14
  5      D  - Rural Real                       36,743,570    1.1256      32,643,541       19
  6      F  - Commercial Real                   4,226,229     .9572       4,415,200       11
  7      F  - Commercial Real                   4,325,509     .8185       5,284,678        8
  8      F  - Commercial Real                   4,614,789     .8243       5,598,434        3

Random Totals:                                223,421,584               219,951,361      109
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                       3,996,060                 4,470,349
 Other Exception Values:                        1,725,050                 1,725,050
Exception Totals(3):                            5,721,110                 6,195,399
Test Values(4):                               229,142,694               226,146,760

Margin of Error Percent:                                    6.5045960
Margin of Error Value:                                     14,709,933
Confidence Interval Values:
  State Lower Limit:                                      211,436,827  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                       229,142,694  (Within Confidence Interval Limits)
  State Upper Limit:                                      240,856,693  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       256,826,446  (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.