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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:07:36                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              110/Hockley                                               VRSN:      P
                                                        110-906/Smyer ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                2,702,477        0.8939             3,023,243                9              114
           2           A                2,647,513        0.9789             2,704,580                8               67
           3           A                2,686,018        0.9788             2,744,195                8               50
           4           A                2,622,150        0.9908             2,646,498                7               33
           5           D3              10,392,962        0.8696            11,951,428               20              826
           6           G1               5,124,739        0.8729             5,870,935               13               24
  RANDOM TOTALS:                       26,175,859                          28,940,879               65            1,114
  CATG J  EXCEPTION VALUES:             1,602,190                           1,404,847
  CATG D1 EXCEPTION VALUES:             6,654,493                           5,642,156
  CATG G1 EXCEPTION VALUES:            10,851,841                          11,446,894
 TOTAL TEST VALUES (4):                45,284,383                          47,434,776
 MARGIN OF ERROR PERCENT:               5.0000004
 MARGIN OF ERROR VALUE:                 2,371,739
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  45,063,037 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   45,284,383 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  49,806,515 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   47,948,395 (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