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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:13:02                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              101/Harris                                                VRSN:      W
                                                        101-910/Galena 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              366,060,978        0.9536           383,872,670              60            6,138         .009174722
      2           A              364,411,538        0.9781           372,570,839              58            4,219         .003010738
      3           A              365,661,641        0.9669           378,179,378              60            3,431         .004645595
      4           A              364,448,200        0.9854           369,847,981              60            2,245         .004625308
      5           B               38,004,321        1.1089            34,272,090               7               72         .102389306
      6           B               34,910,568        0.9292            37,570,564               4                7         .025875421
      7           B               41,772,851        0.9224            45,287,132               3                6         .014186042
      8           F1              77,186,772        0.8974            86,011,558               8              411         .058746267
      9           F1              78,004,650        0.9908            78,728,956               7               81         .006099745
     10           F1              81,488,772        0.8228            99,038,371               6               24         .066559298
     11           F1              70,489,523        1.0114            69,695,000               4                6         .011671575
     12           L1              67,103,417        0.9444            71,054,021               7              734         .008900712
     13           L1              67,821,184        0.9144            74,170,149               6               87         .012545132
     14           L1              69,812,089        0.9137            76,405,920               5               13         .022367613
     15           L1              62,721,618        0.9731            64,455,470               3                6         .000915665
  RANDOM TOTALS:               2,149,898,122                       2,241,160,099             298           17,480
  CATG D1 EXCEPTION VALUES:          851,480                             850,599
  CATG B  EXCEPTION VALUES:       37,190,060                          41,906,313
 TOTAL TEST VALUES (4):        2,187,939,662                       2,283,917,011
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          114,195,851
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          2,169,721,160 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           2,187,939,662 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          2,398,112,862 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           4,045,734,650 (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