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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:04:38                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              146/Liberty                                               VRSN:      W
                                                        146-907/Tarkington ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               39,093,984        0.9913            39,437,087              10            1,082         .028194104
      2           A               39,101,022        0.9042            43,243,776              12              579         .019733168
      3           A               39,108,099        0.9197            42,522,669              18              406         .014986712
      4           A               38,969,862        0.9987            39,020,589              12              260         .007212958
      5           C               10,196,259        0.9820            10,383,156               9            4,076         .010533546
      6           C                   90,967        0.8827               103,055               6               28         .030559853
      7           C                5,467,968        1.0325             5,295,853               8              835         .031762202
      8           C                4,814,234        0.9524             5,054,845               8              255         .143308135
      9           D3              50,562,573        0.9359            54,025,615              20            3,520         .013780660
  RANDOM TOTALS:                 227,404,968                         239,086,645             103           11,041
  CATG J  EXCEPTION VALUES:       11,278,449                          11,181,943
  CATG D1 EXCEPTION VALUES:       24,632,964                          24,333,479
 TOTAL TEST VALUES (4):          263,316,381                         274,602,067
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           13,730,103
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            260,871,964 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             263,316,381 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            288,332,170 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             285,444,671 (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