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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:35:53                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              206/San Saba                                              VRSN:      W
                                                        206-901/San Saba ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               10,933,172        1.1091             9,857,697               8              435         .022032998
      2           A               10,956,827        1.0308            10,629,440               8              245         .010649011
      3           A               10,959,189        1.0292            10,648,260               8              158         .004221355
      4           A               10,861,876        0.9989            10,873,837               6               90         .005017330
      5           D3              41,521,200        1.0726            38,710,796              20            3,555         .022457529
      6           F1               2,914,743        0.9553             3,051,128               6               90         .011698210
      7           F1               2,887,924        0.9589             3,011,705               6               39         .003894541
      8           F1               3,163,312        0.9848             3,212,136               5               17         .003497145
      9           F1               2,615,282        0.9338             2,800,688               3                5         .013385565
     10           L1               2,285,104        1.0298             2,218,978               7               97         .005723973
     11           L1               2,294,077        0.9689             2,367,713               6               30         .009750406
     12           L1               2,218,243        1.0571             2,098,423               5               14         .041557934
  RANDOM TOTALS:                 103,610,949                          99,480,801              88            4,775
  CATG J  EXCEPTION VALUES:        3,888,050                           3,921,606
  CATG D1 EXCEPTION VALUES:       23,812,330                          25,370,285
  CATG L1 EXCEPTION VALUES:        2,202,400                           2,143,534
 TOTAL TEST VALUES (4):          133,513,729                         130,916,226
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            6,545,811
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            124,370,415 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             133,513,729 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            137,462,037 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             130,125,630 (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