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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:55:48                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              109/Hill                                                  VRSN:      W
                                                        109-911/Whitney ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               65,211,234        1.0596            61,543,256              43            1,634         .029935226
      2           A               65,184,044        0.9718            67,075,575              41              771         .023941445
      3           A               65,249,411        0.9502            68,669,134              32              416         .036939273
      4           A               65,089,756        0.9293            70,041,705              26              226         .040126630
      5           C               23,735,659        1.0521            22,560,269              26            3,520         .514940498
      6           C                9,782,932        1.1815             8,280,095              11              946         .235959472
      7           C               19,846,889        1.0194            19,469,187              14            1,115         .224578652
      8           C               12,618,096        1.0541            11,970,492              13              277         .054807134
      9           D3              41,624,359        0.9767            42,617,343              28            1,991         .120394406
     10           F1              11,132,846        1.0334            10,773,027               7              134         .019633933
     11           F1              10,992,657        1.0815            10,164,269               7               53         .040967027
     12           F1              11,534,589        1.0351            11,143,454               7               26         .006429463
     13           F1              10,434,057        0.9396            11,104,786               4                7         .002357261
  RANDOM TOTALS:                 412,436,529                         415,412,592             259           11,116
  CATG D1 EXCEPTION VALUES:        4,480,859                           3,669,560
 TOTAL TEST VALUES (4):          416,917,388                         419,082,152
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:           20,954,108
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            398,128,044 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             416,917,388 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            440,036,260 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             406,655,434 (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