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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     20:26                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        177-901-177 Roscoe

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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         16,152,487     .9929      16,267,990       16
  2      D  - Rural Real                        9,575,653     .9993       9,582,361       10
  3      F  - Commercial Real                     996,820     .9485       1,050,944        7
  4      F  - Commercial Real                   1,132,655     .9559       1,184,910        5
  5      L  - Commercial Personal                 722,711     .9544         757,241        8
  6      L  - Commercial Personal                 775,176     .9970         777,509        6
  7      L  - Commercial Personal                 877,001     .9766         898,015        4

Random Totals:                                 30,232,503                30,518,970       56
 Cat J Exception Values:                       10,218,289                11,045,111
 Cat D1 Exception Values:                       6,533,228                 5,838,464
 Other Exception Values:                        4,166,165                 4,304,724
Exception Totals(3):                           20,917,682                21,188,299
Test Values(4):                                51,150,185                51,707,269

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      2,585,363
Confidence Interval Values:
  State Lower Limit:                                       49,121,906  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                        51,150,185  (Within Confidence Interval Limits)
  State Upper Limit:                                       54,292,632  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                        57,327,147  (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.