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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:16:27                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              174/Nacogdoches                                           VRSN:      W
                                                        174-911/Douglass ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                7,271,193        0.9785             7,430,959                7              124
           2           A                7,265,345        0.9371             7,753,009                8               56
           3           A                7,225,169        1.0042             7,194,950                6               36
           4           A                7,089,508        0.9373             7,563,755                7               22
           5           D3              22,488,850        0.7667            29,332,007               14            1,161
           6           G1              31,649,060        1.0009            31,620,601               18               83
  RANDOM TOTALS:                       82,989,125                          90,895,281               60            1,482
  CATG D1 EXCEPTION VALUES:            10,175,470                           7,970,085
 TOTAL TEST VALUES (4):                93,164,595                          98,865,366
 MARGIN OF ERROR PERCENT:               9.5690659
 MARGIN OF ERROR VALUE:                 9,460,492
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  89,404,874 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   93,164,595 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 108,325,858 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   93,144,343 (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