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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:24:56                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              246/Williamson                                            VRSN:      W
                                                        246-908/Liberty Hill ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               99,505,929        0.9731           102,256,632              37              948         .020553436
      2           A               99,393,414        0.9876           100,641,367              31              527         .007863792
      3           A               99,294,676        0.9676           102,619,549              39              361         .011274100
      4           A               99,364,613        0.9938            99,984,517              19              222         .004912413
      5           C               14,586,037        0.9915            14,711,081              17              536         .038989105
      6           C               14,438,383        0.9063            15,931,130              24              292         .033186802
      7           C               14,775,107        0.9634            15,336,420               9              134         .045935007
      8           C               14,176,161        0.9946            14,253,128              11               64         .026889266
      9           D3              79,867,613        1.0049            79,478,170              21            1,839         .001211698
     10           F1              10,580,473        0.9793            10,804,118               7               70         .001435040
     11           F1              10,524,764        0.9524            11,050,781               7               33         .001495322
     12           F1              10,671,166        0.9167            11,640,849               5               17         .006390945
     13           F1               9,798,652        0.9298            10,538,451               4                6         .008057801
  RANDOM TOTALS:                 576,976,988                         589,246,193             231            5,049
  CATG D1 EXCEPTION VALUES:        3,284,272                           3,124,888
 TOTAL TEST VALUES (4):          580,261,260                         592,371,081
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           29,618,554
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            562,752,527 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             580,261,260 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            621,989,635 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             597,318,604 (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