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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:12:58                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              101/Harris                                                VRSN:      W
                                                        101-908/Deer Park ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              389,836,399        0.9597           406,206,522              57            4,332         .003770955
      2           A              390,309,802        0.9764           399,743,755              56            3,253         .002509257
      3           A              390,090,150        0.9987           390,597,927              56            2,565         .002638871
      4           A              388,961,378        0.9862           394,404,155              57            1,831         .003030928
      5           F1              52,206,636        1.0401            50,193,862               9              231         .034455349
      6           F1              51,721,106        0.9460            54,673,474               7               91         .009414350
      7           F1              54,130,669        0.9871            54,838,080              10               39         .002922744
      8           F1              49,343,670        0.9673            51,011,754               4               11         .026469045
      9           L1              18,408,042        0.9485            19,407,530               8              414         .009512655
     10           L1              18,367,627        0.8995            20,419,819               6               87         .026152850
     11           L1              18,273,928        0.9106            20,068,008               6               31         .022379926
     12           L1              18,297,009        1.0049            18,207,791               4                8         .000194663
  RANDOM TOTALS:               1,839,946,416                       1,879,772,677             280           12,893
  CATG D1 EXCEPTION VALUES:          646,829                             646,829
 TOTAL TEST VALUES (4):        1,840,593,245                       1,880,419,506
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           94,020,975
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,786,398,531 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,840,593,245 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,974,440,481 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           6,702,980,998 (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