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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:26:25                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              166/Milam                                                 VRSN:      W
                                                        166-904/Rockdale ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               33,422,233        0.8902            37,544,634              17            1,051         .066105182
      2           A               33,458,933        1.0149            32,967,714              15              532         .023786234
      3           A               33,334,916        0.9589            34,763,704              15              328         .010337392
      4           A               33,405,305        0.9478            35,245,099              15              205         .013131960
      5           D3              70,635,869        0.9818            71,945,273              20            3,910         .044811330
      6           F1               6,874,835        0.8673             7,926,709               7              160         .029583252
      7           F1               7,033,121        0.8625             8,154,343               6               52         .010822030
      8           F1               6,964,360        0.9160             7,603,013               5               17         .017586731
      9           F1               6,500,391        0.9666             6,725,006               4                5         .004178172
  RANDOM TOTALS:                 231,629,963                         242,875,495             104            6,260
  CATG J  EXCEPTION VALUES:       26,401,357                          28,918,609
  CATG D1 EXCEPTION VALUES:       12,173,590                          12,637,679
 TOTAL TEST VALUES (4):          270,204,910                         284,431,783
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           14,221,589
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:             270,204,910 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:            270,210,194 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            298,653,372 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             596,193,705 (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