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DATE: 01/30/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 08:10:59                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              187/Polk                                                  VRSN:      W
                                                        187-910/Onalaska ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               37,254,830        0.7795            47,793,239              14            1,609         .301152690
      2           A               37,250,878        0.9613            38,750,523              15              749         .400187922
      3           A               37,270,571        0.7611            48,969,348              18              461         .116934734
      4           A               37,126,556        0.8448            43,947,154              15              251         .064298818
      5           C               17,870,816        1.3163            13,576,552              15            5,653         .104847855
      6           C               18,184,157        1.1425            15,916,111              16            2,386         .125356918
      7           C               17,556,322        1.0127            17,336,153              15              998         .300384872
      8           C               17,863,596        0.9983            17,894,016              14              409         .033213088
      9           F1               3,627,806        0.9304             3,899,190              16               73         .123031269
     10           F1               3,681,228        0.9159             4,019,247              14               28         .033064601
     11           F1               3,715,880        0.9238             4,022,386               9               14         .182182356
     12           F1               3,358,043        0.8359             4,017,278               5                6         .086374917
  RANDOM TOTALS:                 234,760,683                         260,141,197             166           12,637
  CATG D1 EXCEPTION VALUES:        4,151,873                           4,249,424
 TOTAL TEST VALUES (4):          238,912,556                         264,390,621
 MARGIN OF ERROR PERCENT:          8.1519495
 MARGIN OF ERROR VALUE:           21,552,990
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:             238,912,556 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:            242,837,631 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            285,943,611 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             230,913,113 (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