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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:14:31                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              161/McLennan                                              VRSN:      W
                                                        161-916/West ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               33,977,161        1.0510            32,328,412               13              719
           2           A               34,023,406        1.0585            32,143,038               13              445
           3           A               34,021,463        0.9902            34,358,173               13              329
           4           A               33,970,912        1.0073            33,724,722               13              216
           5           D3              63,680,120        0.9646            66,017,126               20            3,000
           6           F1               4,724,866        1.0596             4,459,103                6              103
           7           F1               4,695,141        0.9594             4,893,831                6               38
           8           F1               4,880,775        1.0030             4,866,176                5               17
           9           F1               4,506,951        0.9676             4,657,866                5                6
          10           L1               3,307,864        0.9894             3,343,303                7              128
          11           L1               3,303,528        1.0330             3,197,994                6               35
          12           L1               3,293,377        1.0106             3,258,833                5               18
          13           L1               3,192,997        0.9950             3,209,042                3                5
  RANDOM TOTALS:                      231,578,561                         230,457,619              115            5,059
  CATG J  EXCEPTION VALUES:            12,507,589                          12,683,465
  CATG D1 EXCEPTION VALUES:             9,261,883                           9,426,543
 TOTAL TEST VALUES (4):               253,348,033                         252,567,627
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                12,628,381
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 239,939,246 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  253,348,033 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 265,196,008 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  216,693,561 (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