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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:05:52                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              101/Harris                                                VRSN:      W
                                                        101-916/La Porte ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              284,918,269        0.9414           302,653,781               46            3,481
           2           A              282,126,987        0.9648           292,420,177               50            2,753
           3           A              283,144,901        0.9960           284,282,029               50            2,249
           4           A              283,144,944        1.0074           281,065,063               49            1,438
           5           F1              51,110,972        0.9681            52,795,137                7              253
           6           F1              51,640,157        0.9304            55,503,178                7               79
           7           F1              51,985,703        0.9724            53,461,233                6               35
           8           F1              49,438,813        0.9744            50,737,698                5               11
           9           L1              57,052,521        0.9018            63,265,160                9              395
          10           L1              56,816,627        0.9209            61,696,848               10               77
          11           L1              61,578,564        0.9724            63,326,372                6               28
          12           L1              51,225,519        1.0323            49,622,706                3                4
  RANDOM TOTALS:                    1,564,183,977                       1,610,829,382              248           10,803
  CATG D1 EXCEPTION VALUES:               328,430                             299,357
 TOTAL TEST VALUES (4):             1,564,512,407                       1,611,128,739
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                80,556,437
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               1,530,572,302 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                1,564,512,407 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               1,691,685,176 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                4,659,655,185 (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