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Date:   1/22/2004                        COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         Page:      1
Time:     14:31                                      2003 Property Value Study                                          Rpt: VAL7000
                                                     Confidence Interval Detail
                                                        101-903-101 Alief

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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        929,023,393     .9558     971,985,136       50
  2      A  - Single-family Residences        923,970,128     .9632     959,271,312       50
  3      A  - Single-family Residences        916,973,299    1.0145     903,867,224       59
  4      A  - Single-family Residences        922,803,990    1.0124     911,501,373       41
  5      B  - Multi-family Residences         309,813,315     .9410     329,238,379        9
  6      B  - Multi-family Residences         306,956,696    1.0413     294,782,191       11
  7      B  - Multi-family Residences         317,344,401    1.0263     309,212,122        8
  8      B  - Multi-family Residences         298,386,839     .9486     314,554,964        6
  9      F  - Commercial Real                 528,159,003     .8775     601,890,602        7
 10      F  - Commercial Real                 536,366,430     .9134     587,219,652        7
 11      F  - Commercial Real                 535,257,318     .9796     546,403,959        7
 12      F  - Commercial Real                 507,307,703     .9593     528,831,130        5
 13      L  - Commercial Personal             165,699,135     .8959     184,952,712        7
 14      L  - Commercial Personal             166,047,828     .9892     167,860,724        7
 15      L  - Commercial Personal             167,512,341    1.0140     165,199,547        7
 16      L  - Commercial Personal             163,258,280     .9257     176,361,975        6

Random Totals:                              7,694,880,099             7,953,133,002      287
 Cat J Exception Values:                                0                         0
 Cat D1 Exception Values:                          20,400                    20,265
 Other Exception Values:                                0                         0
Exception Totals(3):                               20,400                    20,265
Test Values(4):                             7,694,900,499             7,953,153,267

Margin of Error Percent:                                    5.0000000
Margin of Error Value:                                    397,657,663
Confidence Interval Values:
  State Lower Limit:                                    7,555,495,604  (State Test Value Minus Margin of Error Value)
  Local Test Value:                                     7,694,900,499  (Within Confidence Interval Limits)
  State Upper Limit:                                    8,350,810,930  (State Test Value Plus Margin of Error Value)
Value Assigned (5):                                     8,262,723,696  (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.