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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:05:34                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              101/Harris                                                VRSN:      P
                                                        101-920/Spring Branch ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A            2,691,794,310        0.9874         2,726,143,721               50           18,222
           2           A            2,690,065,320        0.9984         2,694,376,322               50            8,051
           3           A            2,691,435,971        0.9866         2,727,991,051               50            4,267
           4           A            2,690,559,870        0.9898         2,718,286,391               50            1,871
           5           B              116,882,448        0.8435           138,568,403               10               84
           6           B              115,916,631        0.8739           132,642,901                6               31
           7           B              119,983,903        0.8386           143,076,440                8               20
           8           B              111,472,788        0.9790           113,863,931                7               10
           9           F1             587,264,931        0.9307           630,992,727               11              851
          10           F1             584,339,545        0.8289           704,957,830                7              195
          11           F1             587,712,374        0.9526           616,956,093                7               76
          12           F1             583,906,574        0.9165           637,104,827                6               20
          13           L1             248,146,711        0.9682           256,296,954                7            2,919
          14           L1             248,096,842        0.9552           259,732,875                8              393
          15           L1             248,897,939        0.9733           255,725,818                7              111
          16           L1             247,133,703        0.9050           273,075,915                8               23
  RANDOM TOTALS:                   14,563,609,860                      15,029,792,199              292           37,144
  CATG D1 EXCEPTION VALUES:               215,150                             214,070
 TOTAL TEST VALUES (4):            14,563,825,010                      15,030,006,269
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:               751,500,313
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:              14,278,505,956 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:               14,563,825,010 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:              15,781,506,582 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):               13,609,002,894 (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