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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:37:54                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              220/Tarrant                                               VRSN:      W
                                                        220-910/Lake Worth ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               60,578,028        1.0635            56,961,004              11              986         .048665446
      2           A               60,633,897        1.0184            59,538,391              11              693         .013772708
      3           A               60,708,100        0.9682            62,702,024              19              538         .001890065
      4           A               60,347,989        1.0096            59,774,157              10              396         .000840954
      5           B               54,669,007        1.0087            54,197,489               8                9         .002518835
      6           F1              34,776,405        0.8461            41,102,003               8               91         .034705773
      7           F1              34,727,703        0.9716            35,742,798               6               26         .028532726
      8           F1              34,114,765        0.9330            36,564,593               6                9         .022189136
      9           L1              12,695,930        1.1149            11,387,506               7              143         .018208393
     10           L1              13,309,112        1.1187            11,896,945               8               21         .014880433
     11           L1              15,299,728        1.0412            14,694,322               2                4         .005605990
  RANDOM TOTALS:                 441,860,664                         444,561,232              96            2,916
  CATG D1 EXCEPTION VALUES:           38,305                              35,942
  CATG F1 EXCEPTION VALUES:       30,112,820                          31,292,403
  CATG L1 EXCEPTION VALUES:       15,454,107                          15,229,598
 TOTAL TEST VALUES (4):          487,465,896                         491,119,175
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:           24,555,959
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            466,563,216 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             487,465,896 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            515,675,134 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             523,882,284 (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