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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:05:17                                       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              345,765,164        0.9736           355,140,883              57            3,422         .009209502
      2           A              345,870,011        0.9626           359,308,135              56            1,540         .006248197
      3           A              345,918,686        0.9746           354,934,010              48              921         .008998935
      4           A              345,482,220        0.9744           354,558,929              34              444         .001734396
      5           C               39,546,335        0.9277            42,628,366              42            4,296         .091542357
      6           C               39,821,126        0.9939            40,065,526              36            1,447         .045756634
      7           C               39,423,702        0.9126            43,199,323              22              558         .043506232
      8           C               39,349,013        0.8825            44,588,117              16              136         .062925965
      9           D3             108,002,650        0.9348           115,535,569              40            7,008         .043045524
     10           F1              29,399,335        0.9577            30,697,854               7              285         .050123562
     11           F1              29,781,346        0.9869            30,176,660               7              108         .010209932
     12           F1              30,149,232        0.8885            33,932,732               6               43         .011092852
     13           F1              28,360,546        0.9640            29,419,654               4                9         .036969745
  RANDOM TOTALS:               1,766,869,366                       1,834,185,758             375           20,217
  CATG D1 EXCEPTION VALUES:       34,684,070                          38,673,809
 TOTAL TEST VALUES (4):        1,801,553,436                       1,872,859,567
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           93,642,978
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,779,216,589 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,801,553,436 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,966,502,545 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,701,842,321 (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