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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:43:43                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              057/Dallas                                                VRSN:      W
                                                        057-913/Lancaster ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              208,184,278        0.9791           212,628,208              32            2,350         .025932071
      2           A              207,763,118        1.0214           203,410,141              42            1,821         .003403748
      3           A              207,944,596        1.0053           206,848,300              45            1,515         .004110660
      4           A              207,909,590        1.0433           199,280,734              44            1,072         .004121303
      5           B               17,447,089        1.0215            17,079,872               8              224         .004176497
      6           B               18,784,423        0.9286            20,228,756               9               16         .002816839
      7           B               18,176,237        1.0041            18,102,019               2                4         .000217220
      8           F1              47,045,314        0.9136            51,494,433               7              163         .012283219
      9           F1              47,746,915        0.8456            56,465,131               6               40         .015466630
     10           F1              49,394,525        0.9412            52,480,371               5               14         .001721706
     11           F1              44,025,627        0.9474            46,469,946               3                4         .003318068
     12           L1              17,478,987        1.0272            17,016,148               7              152         .014645320
     13           L1              17,649,825        1.1076            15,935,198               7               33         .026110651
     14           L1              18,572,720        1.0019            18,537,499               7               13         .000431123
  RANDOM TOTALS:               1,128,123,244                       1,135,976,756             224            7,421
  CATG J  EXCEPTION VALUES:       92,265,464                          93,285,428
  CATG D1 EXCEPTION VALUES:        1,426,825                           1,761,693
  CATG B  EXCEPTION VALUES:       14,288,860                          14,453,506
  CATG L1 EXCEPTION VALUES:       32,445,550                          30,536,867
 TOTAL TEST VALUES (4):        1,268,549,943                       1,276,014,250
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           63,800,713
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,212,213,537 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,268,549,943 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,339,814,963 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,294,906,558 (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