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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:07:38                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              110/Hockley                                               VRSN:      P
                                                        110-907/Sundown ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                3,599,912        0.8265             4,355,610                7              194
           2           A                3,639,490        0.7830             4,648,135                7               98
           3           A                3,632,532        0.8598             4,224,857                7               66
           4           A                3,566,551        0.8240             4,328,339                6               45
           5           G1             573,812,783        0.8156           703,546,816               10               47
  RANDOM TOTALS:                      588,251,268                         721,103,757               37              450
  CATG J  EXCEPTION VALUES:             4,221,580                           3,467,796
  CATG D1 EXCEPTION VALUES:             3,050,500                           3,019,931
 TOTAL TEST VALUES (4):               595,523,348                         727,591,484
 MARGIN OF ERROR PERCENT:              12.7587842
 MARGIN OF ERROR VALUE:                92,831,827
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:                  595,523,348 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:                 634,759,657 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:                 820,423,311 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  646,381,132 (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