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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:09:28                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              122/Jeff Davis                                            VRSN:      P
                                                        122-902/Valentine ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                  828,356        1.0157               815,552                8               62
           2           A                  804,230        1.0172               790,631                6               18
           3           A                  804,890        0.9394               856,813                5                9
           4           A                  812,279        0.9533               852,071                4                5
           5           C                  715,014        0.9189               778,119                7              440
           6           C                   91,120        0.9562                95,294                7               42
           7           C                  395,657        0.9363               422,575                8              105
           8           C                  396,401        1.0468               378,679                7               27
           9           D3               6,488,860        0.9742             6,660,706               20            1,369
  RANDOM TOTALS:                       11,336,807                          11,650,440               72            2,077
  CATG J  EXCEPTION VALUES:             7,662,887                           7,879,611
  CATG D1 EXCEPTION VALUES:             7,141,030                           8,496,015
 TOTAL TEST VALUES (4):                26,140,724                          28,026,066
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 1,401,303
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:                   26,140,724 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:                  26,624,763 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:                  29,427,369 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   27,596,349 (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