School and Appraisal Districts' Property Value Study 2003 Preliminary Report



Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     15:30                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        145-901-145 Buffalo

------------------------------------------------------------------------------------------------------------------------------------
                                                              (1)                         (2)
  (1)                  (1)                        (1)       Stratum         (1)         Sample
Stratum              Category                 Local Value    Ratio      State Value      Size
------------------------------------------------------------------------------------------------------------------------------------
  1      A  - Single-family Residences          6,451,668     .9552       6,754,259        7
  2      A  - Single-family Residences          6,478,821     .8940       7,247,003        7
  3      A  - Single-family Residences          6,413,653     .9603       6,678,801        7
  4      A  - Single-family Residences          6,440,806     .9130       7,054,552        7
  5      D  - Rural Real                       44,020,724     .8795      50,051,989       10
  6      F  - Commercial Real                   3,191,424    1.0107       3,157,637        7
  7      F  - Commercial Real                   3,235,306     .9776       3,309,437        6
  8      F  - Commercial Real                   3,538,491    1.0072       3,513,196        6
  9      G  - Oil, Gas, Minerals                9,087,010     .9586       9,479,460       12
 10      L  - Commercial Personal               1,852,305    1.0264       1,804,662        7
 11      L  - Commercial Personal               1,937,594    1.1251       1,722,153        6
 12      L  - Commercial Personal               1,772,445    1.1109       1,595,504        4

Random Totals:                                 94,420,247               102,368,653       86
 Cat J Exception Values:                        8,741,330                 9,216,108
 Cat D1 Exception Values:                       5,271,950                 5,366,463
 Other Exception Values:                        6,169,796                 5,799,890
Exception Totals(3):                           20,183,076                20,382,461
Test Values(4):                               114,603,323               122,751,114

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                      6,137,556
Confidence Interval Values:
  Local Test Value:                                       114,603,323  (Outside of ConfidenceInterval Limits)
  State Lower Limit:                                      116,613,558  (State Test Value Minus Margin of Error Value)
  State Upper Limit:                                      128,888,670  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                       150,226,904  (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.