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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:05:58                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              101/Harris                                                VRSN:      W
                                                        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            2,687,113,763        0.9874         2,721,403,446               50           18,222
           2           A            2,685,387,780        0.9984         2,689,691,286               50            8,051
           3           A            2,686,756,047        0.9866         2,723,247,564               50            4,267
           4           A            2,685,881,470        0.9898         2,713,559,780               50            1,871
           5           B              113,013,624        0.8435           133,981,771               10               84
           6           B              112,079,776        0.8739           128,252,404                6               31
           7           B              116,012,421        0.8386           138,340,593                8               20
           8           B              107,783,025        0.9790           110,095,020                7               10
           9           F1             584,166,048        0.9307           627,663,101               11              851
          10           F1             581,256,099        0.8289           701,237,904                7              195
          11           F1             584,611,130        0.9526           613,700,535                7               76
          12           F1             580,825,412        0.9165           633,742,948                6               20
          13           L1             242,125,165        0.9682           250,077,634                7            2,919
          14           L1             242,076,506        0.9552           253,430,178                8              393
          15           L1             242,858,163        0.9733           249,520,357                7              111
          16           L1             241,136,739        0.9050           266,449,435                8               23
  RANDOM TOTALS:                   14,493,083,168                      14,954,393,956              292           37,144
  CATG D1 EXCEPTION VALUES:                19,310                              18,229
 TOTAL TEST VALUES (4):            14,493,102,478                      14,954,412,185
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:               747,720,609
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:              14,206,691,576 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:               14,493,102,478 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:              15,702,132,794 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):               13,550,508,363 (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