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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:38:15                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              220/Tarrant                                               VRSN:      W
                                                        220-920/White Settlement ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              166,833,241        1.0256           162,668,917              42            2,436         .016377982
      2           A              164,584,773        1.0002           164,551,863              53            1,772         .005752091
      3           A              165,231,887        1.0031           164,721,251              56            1,479         .004342766
      4           A              165,284,715        1.0405           158,851,240              47              946         .004577570
      5           F1              46,559,663        0.8553            54,436,646               7              115         .153714788
      6           F1              44,832,356        0.9189            48,789,157               6               29         .029589419
      7           F1              45,641,742        0.8768            52,054,906               4               12         .042890511
      8           F1              42,154,124        0.9575            44,025,195               3                4         .004029635
      9           L1              19,936,728        0.9430            21,141,811               7              130         .214310682
     10           L1              18,914,012        1.0325            18,318,656               5               17         .001046589
     11           L1              38,381,965        1.0859            35,345,764               8                9         .023589274
  RANDOM TOTALS:                 918,355,206                         924,905,406             238            6,949
  CATG D1 EXCEPTION VALUES:          474,391                             398,316
 TOTAL TEST VALUES (4):          918,829,597                         925,303,722
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           46,265,186
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            879,038,536 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             918,829,597 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            971,568,908 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             980,234,254 (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