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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:07:14                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              109/Hill                                                  VRSN:      P
                                                        109-905/Hubbard ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                6,775,739        1.0345             6,549,772                8              242
           2           A                6,745,312        0.9622             7,010,301                8              130
           3           A                6,777,353        1.0925             6,203,527                7               87
           4           A                6,721,627        1.0195             6,593,062                8               52
           5           D3              15,537,274        0.9884            15,719,622               17            1,073
           6           F1               1,134,928        0.5263             2,156,428                6               32
           7           F1               1,075,713        0.8009             1,343,130                5               12
  RANDOM TOTALS:                       44,767,946                          45,575,842               59            1,628
  CATG J  EXCEPTION VALUES:             1,815,010                           1,900,700
  CATG D1 EXCEPTION VALUES:             3,488,065                           2,865,527
  CATG F1 EXCEPTION VALUES:             3,060,600                           3,248,583
 TOTAL TEST VALUES (4):                53,131,621                          53,590,652
 MARGIN OF ERROR PERCENT:               5.0000007
 MARGIN OF ERROR VALUE:                 2,679,533
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  50,911,119 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   53,131,621 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  56,270,185 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   47,674,788 (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