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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:20:42                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              226/Tom Green                                             VRSN:      W
                                                        226-906/Wall ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               19,792,842        0.9030            21,918,983               8              330         .018879882
      2           A               19,727,125        0.9994            19,738,968               9              201         .002050316
      3           A               19,867,663        1.0103            19,665,112              11              144         .001568600
      4           A               19,635,326        0.9891            19,851,710               9               72         .000549468
      5           D3              22,961,149        0.8807            26,071,476              23            2,335         .124558627
      6           F1               1,894,167        0.8894             2,129,713               7               31         .004103014
      7           F1               1,885,255        0.8877             2,123,752               9               15         .004358810
      8           F1               1,791,517        0.7934             2,258,025               7                8         .030740407
  RANDOM TOTALS:                 107,555,044                         113,757,739              83            3,136
  CATG J  EXCEPTION VALUES:        1,335,470                           1,117,247
  CATG D1 EXCEPTION VALUES:       29,563,000                          29,326,848
  CATG F1 EXCEPTION VALUES:        1,642,100                           2,187,262
 TOTAL TEST VALUES (4):          140,095,614                         146,389,096
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:            7,319,455
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            139,069,641 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             140,095,614 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            153,708,551 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             147,286,074 (SEE ISD SUMMARY WORKSHEET)

 SOURCES:
 (1) SEE STRATIFIED CATEGORY WORKSHEET REPORTS PTS236, PTS430
 (2) NUMBER OF PARCELS SAMPLED BY STAFF
 (3) TOTAL CATEGORY PARCELS FROM STRATIFICATION REPORT APPRAISAL ROLL, OR SELF-REPORT
 (4) INCLUDES ANY PARCELS IN A, B, C, D3, F1, G1, G2,OR L1 MARKED AS EXCEPTION PROPERTIES
 (5) UNSTUDIED CATEGORIES AND SUB-CATEGORIES WERE NOT INCLUDED IN THE CONFIDENCE INTERVAL VALUES