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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:46:32                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              070/Ellis                                                 VRSN:      W
                                                        070-915/Maypearl ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               24,155,317        0.9912            24,369,771              16              344         .080568921
      2           A               24,311,074        0.9503            25,582,526              16              183         .015066546
      3           A               24,005,387        0.9709            24,724,881              21              126         .006980927
      4           A               24,129,292        0.9932            24,294,495              20               78         .001754033
      5           D3              38,291,773        0.9412            40,683,992              22            1,440         .050314493
  RANDOM TOTALS:                 134,892,843                         139,655,665              95            2,171
  CATG J  EXCEPTION VALUES:       13,319,059                          12,037,654
  CATG D1 EXCEPTION VALUES:        4,784,918                           3,672,398
 TOTAL TEST VALUES (4):          152,996,820                         155,365,717
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:            7,768,286
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            147,597,431 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             152,996,820 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            163,134,003 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             150,463,221 (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