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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:14:12                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              161/McLennan                                              VRSN:      P
                                                        161-920/China Spring ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               57,045,754        0.9056            62,992,220               15              630
           2           A               57,121,174        0.9836            58,073,581               24              428
           3           A               57,156,300        0.9935            57,530,247               39              313
           4           A               56,983,858        0.9915            57,472,373               15              193
           5           D3              68,115,086        0.9579            71,108,765               28            2,043
  RANDOM TOTALS:                      296,422,172                         307,177,186              121            3,607
  CATG D1 EXCEPTION VALUES:             3,315,776                           2,849,389
 TOTAL TEST VALUES (4):               299,737,948                         310,026,575
 MARGIN OF ERROR PERCENT:               5.0000001
 MARGIN OF ERROR VALUE:                15,501,329
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 294,525,246 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  299,737,948 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 325,527,904 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  317,908,368 (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