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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:39:23                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              227/Travis                                                VRSN:      W
                                                        227-904/Pflugerville ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              833,243,135        0.9558           871,775,617              63            7,172         .008342773
      2           A              833,128,635        0.9740           855,368,208              35            5,925         .008798604
      3           A              833,218,026        0.9816           848,836,620              40            5,042         .005091382
      4           A              833,013,127        1.0056           828,374,231              44            3,883         .015585713
      5           B               79,860,512        0.9900            80,667,184               7              258         .033300748
      6           B               69,868,343        0.9820            71,149,025               5                7         .009270713
      7           B               78,247,534        0.9268            84,427,637               3                5         .001511141
      8           D3             111,167,946        0.8872           125,302,013              11            1,355         .013105956
      9           F1             202,694,919        1.0732           188,869,660               8              310         .272995328
     10           F1             202,052,405        1.0242           197,278,271              10               77         .094612827
     11           F1             214,574,167        0.8526           251,670,381               5               22         .043793540
     12           F1             188,747,029        1.0272           183,749,055               5                7         .004528964
     13           L1             140,013,968        0.9897           141,471,121               8              468         .008020257
     14           L1             141,787,897        1.0093           140,481,420               6               76         .011059870
     15           L1             147,756,479        0.9636           153,337,982               5               23         .007792603
     16           L1             128,864,933        0.9608           134,122,536               4                7         .002324889
  RANDOM TOTALS:               5,038,239,055                       5,156,880,961             259           24,637
  CATG D1 EXCEPTION VALUES:        4,602,960                           4,361,126
  CATG B  EXCEPTION VALUES:      102,286,578                          97,097,662
 TOTAL TEST VALUES (4):        5,145,128,593                       5,258,339,749
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          262,916,987
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          4,995,422,762 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           5,145,128,593 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          5,521,256,736 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           5,248,037,564 (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