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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:03:58                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              055/Culberson                                             VRSN:      W
                                                        055-901/Culberson-Allamore ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                4,339,719        0.8217             5,281,391              10              305         .094703355
      2           A                4,325,183        0.8224             5,259,221               9              164         .078478321
      3           A                4,327,272        0.8703             4,972,161               9              112         .054425751
      4           A                4,285,253        0.8956             4,784,785              11               66         .066534974
      5           C                2,579,470        0.4011             6,430,990               7            1,763        1.577847681
      6           C                3,266,234        0.8778             3,720,932               7            1,113         .109763340
      7           C                1,807,542        0.7755             2,330,809               7              307         .051682975
      8           C                2,549,197        1.1138             2,288,739               7              116         .086057363
      9           D3               7,157,750        0.5989            11,951,494              15            8,227         .144326811
     10           F1               4,429,944        0.9360             4,732,846               8               89         .045594868
     11           F1               4,899,952        0.9755             5,023,016               6               17         .001331450
     12           F1               4,320,381        0.8949             4,827,781               3                5         .031763156
     13           F1               3,765,442        0.9333             4,034,546               2                3         .001340794
     14           G1               4,097,470        0.9797             4,182,372               5               15         .001427255
     15           G1               4,001,700        0.9764             4,098,423               3                5         .001834402
     16           G1               4,766,870        1.0709             4,451,275               2                3         .003766436
  RANDOM TOTALS:                  64,919,379                          78,370,781             111           12,310
  CATG J  EXCEPTION VALUES:       52,655,580                          54,572,733
  CATG D1 EXCEPTION VALUES:       18,854,620                          26,134,952
  CATG G1 EXCEPTION VALUES:        1,912,621                           1,887,199
 TOTAL TEST VALUES (4):          138,342,200                         160,965,665
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            8,048,283
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:             138,342,200 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:            152,917,382 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            169,013,948 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             224,846,400 (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