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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:15:28                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              170/Montgomery                                            VRSN:      P
                                                        170-906/Magnolia ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              318,968,577        0.9778           326,210,449               16            4,278
           2           A              318,571,867        0.9540           333,932,775               18            2,073
           3           A              318,923,127        0.9456           337,270,650               20            1,375
           4           A              318,676,556        0.9452           337,152,514               17              839
           5           C               39,626,010        0.7854            50,453,285               10            3,944
           6           C               39,600,820        0.8311            47,648,682               17            1,766
           7           C               39,646,830        0.9309            42,589,784               14              987
           8           C               39,571,401        1.0277            38,504,818                7              467
           9           D3             121,179,809        0.9875           122,713,731               10            2,314
  RANDOM TOTALS:                    1,554,764,997                       1,636,476,688              129           18,043
  CATG D1 EXCEPTION VALUES:            22,671,564                          22,146,461
 TOTAL TEST VALUES (4):             1,577,436,561                       1,658,623,149
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                82,931,157
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               1,575,691,992 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                1,577,436,561 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               1,741,554,306 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                1,741,772,960 (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