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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:13:20                                       2005 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   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              304,064,642        0.9628           315,812,881              57            3,506         .011090689
      2           A              303,745,352        0.9869           307,777,234              56            2,823         .001976745
      3           A              302,543,084        0.9851           307,119,159              55            2,276         .006184677
      4           A              303,266,006        0.9926           305,526,905              58            1,501         .004823946
      5           F1              58,949,435        0.8380            70,345,388               8              260         .162793308
      6           F1              58,256,753        0.7749            75,179,704               8               78         .294483650
      7           F1              60,357,369        0.8867            68,069,662               6               33         .019765050
      8           F1              56,768,601        0.8721            65,094,142               4                9         .027187822
      9           L1              53,574,906        1.0199            52,529,568               7              391         .003365066
     10           L1              53,583,079        0.9410            56,942,698               6               77         .009173930
     11           L1              53,584,591        0.9578            55,945,491               6               27         .004309748
     12           L1              53,403,149        0.9896            53,964,379               3                6         .000497993
  RANDOM TOTALS:               1,662,096,967                       1,734,307,211             274           10,987
  CATG D1 EXCEPTION VALUES:        3,875,726                           3,852,654
 TOTAL TEST VALUES (4):        1,665,972,693                       1,738,159,865
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           86,907,993
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,651,251,872 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,665,972,693 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,825,067,858 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           4,712,397,407 (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