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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:21:46                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              221/Taylor                                                VRSN:      P
                                                        221-904/Merkel ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               14,054,821        0.9656            14,555,531               10              661
           2           A               14,042,048        0.9618            14,599,759               10              368
           3           A               14,050,065        1.0036            13,999,666                8              241
           4           A               14,040,850        1.0562            13,293,742               10              152
           5           D3              29,282,475        1.0116            28,946,693               16            2,660
           6           F1               4,739,057        0.9732             4,869,561                7               93
           7           F1               4,770,804        0.9487             5,028,780                8               33
           8           F1               5,104,852        1.0375             4,920,339                5               11
           9           G1               8,971,285        1.0256             8,747,353               20              131
          10           L1               6,719,766        0.9897             6,789,700                7               80
          11           L1               7,602,775        0.9858             7,712,290                8               13
  RANDOM TOTALS:                      123,378,798                         123,463,414              109            4,443
  CATG J  EXCEPTION VALUES:            12,969,640                          13,355,738
  CATG D1 EXCEPTION VALUES:            13,196,399                          13,462,436
  CATG F1 EXCEPTION VALUES:             4,471,947                           4,472,822
  CATG L1 EXCEPTION VALUES:            11,842,775                          12,677,720
 TOTAL TEST VALUES (4):               165,859,559                         167,432,130
 MARGIN OF ERROR PERCENT:               5.0000003
 MARGIN OF ERROR VALUE:                 8,371,607
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 159,060,523 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  165,859,559 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 175,803,737 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  171,114,591 (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