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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:43:39                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              057/Dallas                                                VRSN:      W
                                                        057-911/Highland Park ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A            1,996,714,847        0.9728         2,052,544,045              46            3,534         .009150620
      2           A            1,997,044,602        0.9563         2,088,303,463              49            2,257         .008018910
      3           A            1,997,424,689        0.9666         2,066,443,916              50            1,467         .003549147
      4           A            1,995,533,460        0.9751         2,046,491,088              49              633         .001979907
      5           B              105,755,520        0.9577           110,426,564              13              399         .010794892
      6           B              105,501,359        0.9740           108,317,617               8              268         .002351164
      7           B              106,126,790        0.9915           107,036,601              26              214         .001269955
      8           B              105,408,038        0.8617           122,325,679              20              128         .137960533
      9           F1             186,333,913        0.9090           204,987,803               7              122         .024573670
     10           F1             184,630,672        0.8866           208,245,739               5               18         .015749643
     11           F1             205,074,451        0.9138           224,419,404               3                6         .011992064
     12           F1             155,321,510        1.0000           155,321,510               2                3         .003162116
  RANDOM TOTALS:               9,140,869,851                       9,494,863,429             278            9,049
 TOTAL TEST VALUES (4):        9,140,869,851                       9,494,863,429
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          474,743,171
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          9,020,120,258 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           9,140,869,851 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          9,969,606,600 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           8,682,599,033 (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