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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:05:25                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              061/Denton                                                VRSN:      W
                                                        061-912/Lake Dallas ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              197,465,189        0.9943           198,597,193              58            1,719         .000881891
      2           A              197,036,044        1.0023           196,583,901              56            1,361         .000956532
      3           A              197,197,863        1.0010           197,000,862              58            1,160         .000906758
      4           A              197,157,645        1.0009           196,980,363              52              766         .001054144
      5           F1              26,901,416        0.8813            30,524,698               8               66         .024402710
      6           F1              25,783,504        0.9348            27,581,840               8               26         .011621675
      7           F1              29,195,562        0.9485            30,780,772               4               11         .003399971
  RANDOM TOTALS:                 870,737,223                         878,049,629             244            5,109
  CATG D1 EXCEPTION VALUES:          117,683                             103,214
  CATG F1 EXCEPTION VALUES:       28,721,019                          29,142,876
 TOTAL TEST VALUES (4):          899,575,925                         907,295,719
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           45,364,786
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            861,930,933 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             899,575,925 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            952,660,505 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,032,934,802 (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