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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:23:32                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              150/Llano                                                 VRSN:      W
                                                        150-901/Llano ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              345,830,672        0.9736           355,208,168              57            3,422         .009209502
      2           A              345,935,539        0.9626           359,376,209              56            1,540         .006248197
      3           A              345,984,224        0.9746           355,001,256              48              921         .008998935
      4           A              345,547,675        0.9744           354,626,103              34              444         .001734396
      5           C               41,077,533        0.9277            44,278,897              42            4,296         .091542357
      6           C               41,362,963        0.9939            41,616,826              36            1,447         .045756634
      7           C               40,950,151        0.9126            44,871,960              22              558         .043506232
      8           C               40,872,570        0.8825            46,314,527              16              136         .062925965
      9           D3             107,835,833        0.9348           115,357,117              40            6,903         .043045524
     10           F1              29,410,960        0.9577            30,709,993               7              285         .050123562
     11           F1              29,793,122        0.9869            30,188,593               7              108         .010209932
     12           F1              30,161,154        0.8885            33,946,150               6               43         .011092852
     13           F1              28,371,760        0.9640            29,431,286               4                9         .036969745
  RANDOM TOTALS:               1,773,134,156                       1,840,927,085             375           20,112
  CATG D1 EXCEPTION VALUES:       34,690,990                          38,681,395
 TOTAL TEST VALUES (4):        1,807,825,146                       1,879,608,480
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           93,980,424
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,785,628,056 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,807,825,146 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,973,588,904 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,709,035,763 (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