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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:46:20                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              070/Ellis                                                 VRSN:      W
                                                        070-908/Midlothian ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              275,957,382        1.0180           271,077,978              56            2,318         .004506240
      2           A              275,834,404        1.0214           270,055,222              57            1,589         .014439624
      3           A              276,043,745        1.0080           273,852,922              57            1,153         .003008000
      4           A              275,740,215        1.0062           274,041,160              56              748         .001949759
      5           D3              84,437,790        1.0715            78,803,350              19            2,386         .048282955
  RANDOM TOTALS:               1,188,013,536                       1,167,830,632             245            8,194
  CATG D1 EXCEPTION VALUES:        4,964,350                           4,040,503
 TOTAL TEST VALUES (4):        1,192,977,886                       1,171,871,135
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           58,593,557
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,113,277,578 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,192,977,886 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,230,464,692 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           2,048,224,086 (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