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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:22:54                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              229/Tyler                                                 VRSN:      P
                                                        229-905/Spurger ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                4,485,854        0.9352             4,796,679               16              225
           2           A                4,472,587        0.9308             4,805,100               16              129
           3           A                4,473,598        0.9754             4,586,424               15               83
           4           A                4,474,649        0.9332             4,794,952               29               53
           5           D3              12,033,245        0.9665            12,450,331               21            1,681
  RANDOM TOTALS:                       29,939,933                          31,433,486               97            2,171
  CATG J  EXCEPTION VALUES:             2,374,074                           2,633,035
  CATG D1 EXCEPTION VALUES:            12,173,835                          12,488,824
 TOTAL TEST VALUES (4):                44,487,842                          46,555,345
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 2,327,767
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  44,227,578 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   44,487,842 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  48,883,112 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   39,095,956 (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