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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:39:25                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              227/Travis                                                VRSN:      W
                                                        227-907/Manor ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              121,228,707        0.8876           136,580,337              15            1,300         .053903070
      2           A              121,687,217        0.9473           128,456,895              22              812         .004140990
      3           A              120,947,754        0.9683           124,907,316              15              651         .007521857
      4           A              121,036,134        0.9498           127,433,285              22              480         .005508043
      5           B              117,284,518        0.9007           130,214,853              10               96         .014999699
      6           D3              74,373,839        0.9569            77,723,732              20            1,732         .136635068
      7           F1              73,410,160        0.9957            73,727,187               7              111         .016241545
      8           F1              72,324,647        0.9747            74,201,956               7               37         .012887061
      9           F1              77,577,101        0.9534            81,368,891               6               19         .001254079
     10           F1              67,498,463        0.9815            68,770,721               5                8         .014360322
     11           L1              49,418,686        1.1062            44,674,278               7              242         .038699440
     12           L1              49,236,066        0.9464            52,024,584               6               51         .003287110
     13           L1              48,470,510        1.0274            47,177,837               6               19         .007314847
     14           L1              48,589,337        1.0240            47,450,524               4               10         .003353232
  RANDOM TOTALS:               1,163,083,139                       1,214,712,396             152            5,568
  CATG D1 EXCEPTION VALUES:        4,468,450                           4,537,228
 TOTAL TEST VALUES (4):        1,167,551,589                       1,219,249,624
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           60,962,481
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,158,287,143 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,167,551,589 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,280,212,105 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,580,577,539 (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