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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:18:35                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              187/Polk                                                  VRSN:      W
                                                        187-907/Livingston ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               89,484,485        0.9867            90,690,671               20            3,566
           2           A               89,434,445        0.8354           107,055,836               20            1,686
           3           A               89,445,872        0.9261            96,583,384               24            1,022
           4           A               89,467,277        0.8901           100,513,737               18              543
           5           C               36,380,304        1.1343            32,072,912               21           11,428
           6           C               36,376,461        1.1468            31,719,969               16            3,993
           7           C               36,431,931        1.0132            35,957,295               16            1,576
           8           C               36,315,866        1.2589            28,847,300               16              478
           9           D3              64,437,479        1.0721            60,103,982               20            4,071
          10           F1              21,392,636        0.8564            24,979,724               14              291
          11           F1              21,150,759        1.0456            20,228,346               13               90
          12           F1              22,405,438        0.9675            23,158,075               13               30
          13           F1              20,176,164        0.8805            22,914,440                5                8
          14           L1              12,425,812        0.7461            16,654,352               10              494
          15           L1              12,659,005        1.2260            10,325,453                9              112
          16           L1              12,888,088        1.0840            11,889,380                7               28
          17           L1              11,769,908        1.1247            10,464,931                3                4
  RANDOM TOTALS:                      702,641,930                         724,159,787              245           29,420
  CATG J  EXCEPTION VALUES:            11,801,779                          12,166,407
  CATG D1 EXCEPTION VALUES:            37,784,736                          32,664,997
 TOTAL TEST VALUES (4):               752,228,445                         768,991,191
 MARGIN OF ERROR PERCENT:               5.0000001
 MARGIN OF ERROR VALUE:                38,449,560
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 730,541,631 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  752,228,445 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 807,440,751 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  747,676,248 (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