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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:24:27                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              245/Willacy                                               VRSN:      W
                                                        245-901/Lasara ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                1,999,339        0.9397             2,127,635              15              122         .019091313
      2           A                2,015,796        0.9501             2,121,667              14               72         .007244711
      3           A                1,985,407        0.9885             2,008,505              13               47         .002222751
      4           A                1,981,684        0.9659             2,051,645              11               25         .030008291
      5           D3               3,156,767        0.9368             3,369,734              20           28,611         .021176478
      6           G1               7,955,454        0.9417             8,447,971               9               13         .041778714
  RANDOM TOTALS:                  19,094,447                          20,127,157              82           28,890
  CATG J  EXCEPTION VALUES:          356,371                             350,423
  CATG D1 EXCEPTION VALUES:        8,600,695                           8,015,799
 TOTAL TEST VALUES (4):           28,051,513                          28,493,379
 MARGIN OF ERROR PERCENT:          5.0000002
 MARGIN OF ERROR VALUE:            1,424,669
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             27,068,710 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              28,051,513 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             29,918,048 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              30,770,973 (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