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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:55:19                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              011/Bastrop                                               VRSN:      W
                                                        011-902/Elgin ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               94,296,143        0.9506            99,196,448               9            3,753         .096228966
      2           A               94,324,609        0.9390           100,452,193              12            1,309         .016544883
      3           A               94,254,741        0.9657            97,602,507              35              801         .008957943
      4           A               94,198,043        0.9995            94,245,166              28              507         .008249686
      5           D3             138,549,991        0.9725           142,467,857              23           93,665         .011558346
      6           F1              10,914,078        0.8232            13,258,112               7              229         .012575029
      7           F1              10,856,739        0.9783            11,097,556               7               77         .005386266
      8           F1              11,377,422        0.9219            12,341,276               6               39         .023112052
      9           F1              10,317,277        0.8636            11,946,824               4                8         .010454787
  RANDOM TOTALS:                 559,089,043                         582,607,939             131          100,388
  CATG D1 EXCEPTION VALUES:        8,258,405                          10,107,134
 TOTAL TEST VALUES (4):          567,347,448                         592,715,073
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:           29,635,754
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            563,079,319 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             567,347,448 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            622,350,827 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             654,056,836 (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