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Date:   6/27/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     18:46                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        095-905-095 Plainview

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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         85,643,555     .9682      88,456,471       48
  2      A  - Single-family Residences         85,643,555     .9776      87,605,928       66
  3      A  - Single-family Residences         85,679,615     .9750      87,876,528       50
  4      A  - Single-family Residences         85,607,495     .9202      93,031,401       28
  5      D  - Rural Real                       48,397,824     .8991      53,829,189       19
  6      F  - Commercial Real                  20,946,592     .9027      23,204,378        6
  7      F  - Commercial Real                  21,043,445     .9839      21,387,788        8
  8      F  - Commercial Real                  21,606,951     .8051      26,837,599        5
  9      F  - Commercial Real                  20,048,504     .9874      20,304,339        7
 10      L  - Commercial Personal              22,097,324    1.0313      21,426,669        8
 11      L  - Commercial Personal              22,515,834     .9860      22,835,531        5
 12      L  - Commercial Personal              22,478,633    1.0038      22,393,538        6
 13      L  - Commercial Personal              21,260,304     .9974      21,315,725        2

Random Totals:                                562,969,631               590,505,084      258
 Cat J Exception Values:                       32,514,604                32,197,371
 Cat D1 Exception Values:                      45,627,942                42,566,213
 Other Exception Values:                                0                         0
Exception Totals(3):                           78,142,546                74,763,584
Test Values(4):                               641,112,177               665,268,668

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                     33,263,433
Confidence Interval Values:
  State Lower Limit:                                      632,005,235  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                       641,112,177  (Within Confidence Interval Limits)
  State Upper Limit:                                      698,532,101  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       813,477,786  (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.