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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:33:08                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              188/Potter                                                VRSN:      W
                                                        188-903/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                6,685,543        0.6949             9,620,871               7              259         .014411670
      2           A                6,759,933        1.1624             5,815,496               7              110         .046167442
      3           A                6,829,937        1.1100             6,153,096               7               51         .019016937
      4           A                6,447,083        1.0594             6,085,598               5               18         .005220232
      5           F1              15,963,917        0.9345            17,082,843               8               67         .014423829
      6           F1              16,104,442        0.9003            17,887,862               7               25         .019930562
      7           F1              18,264,454        0.9696            18,837,102               6               11         .007516216
      8           G1               9,326,530        1.0957             8,511,938               6               29         .031400441
      9           G1               9,579,300        1.1306             8,472,758               4               12         .006364236
     10           G1               9,179,120        0.9830             9,337,864               3                6         .022401776
     11           G1               8,015,680        0.9861             8,128,668               2                3         .014600511
     12           L1              24,524,072        0.9782            25,070,611              10              103         .014894929
     13           L1              24,339,066        1.0616            22,926,777               6               27         .005232432
     14           L1              27,639,605        1.0015            27,598,208               4               10         .006698646
     15           L1              20,638,405        1.0000            20,638,405               2                4
  RANDOM TOTALS:                 210,297,087                         212,168,097              84              735
  CATG J  EXCEPTION VALUES:      255,234,668                         251,285,801
  CATG D1 EXCEPTION VALUES:        5,114,338                           6,238,521
  CATG F1 EXCEPTION VALUES:       16,031,333                          15,372,784
 TOTAL TEST VALUES (4):          486,677,426                         485,065,203
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           24,253,260
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            460,811,943 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             486,677,426 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            509,318,463 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             714,991,991 (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