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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     13:55                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        071-907-071 Canutillo

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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         45,913,390     .9056      50,699,415        8
  2      A  - Single-family Residences         45,952,054     .9108      50,452,409       14
  3      A  - Single-family Residences         45,952,054     .9727      47,241,754       15
  4      A  - Single-family Residences         45,797,398     .9519      48,111,564       29
  5      C  - Vacant Lots                       8,886,157     .7598      11,695,390       11
  6      C  - Vacant Lots                       9,106,167     .9133       9,970,620       11
  7      C  - Vacant Lots                       9,188,205    1.0254       8,960,606        7
  8      C  - Vacant Lots                       8,241,044    1.0656       7,733,712        4
  9      D  - Rural Real                       29,649,332    1.0203      29,059,426       11
 10      F  - Commercial Real                  22,400,942     .9838      22,769,813        8
 11      F  - Commercial Real                  23,411,511     .9505      24,630,732       10
 12      L  - Commercial Personal              16,725,642     .8864      18,869,181       11
 13      L  - Commercial Personal              17,058,353     .9099      18,747,503        7

Random Totals:                                328,282,249               348,942,125      146
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                       2,267,278                 2,636,349
 Other Exception Values:                       60,742,483                63,197,198
Exception Totals(3):                           63,009,761                65,833,547
Test Values(4):                               391,292,010               414,775,672

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                     20,738,784
Confidence Interval Values:
  Local Test Value:                                       391,292,010  (Outside of ConfidenceInterval Limits)
  State Lower Limit:                                      394,036,888  (State Test Value Minus Margin of Error Value)
  State Upper Limit:                                      435,514,456  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       580,025,527  (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.