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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:08:30                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              115/Hudspeth                                              VRSN:      P
                                                        115-902/Sierra Blanca ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                1,366,110        0.9763             1,399,273               11               85
           2           A                1,375,274        0.9943             1,383,158                9               46
           3           A                1,367,475        0.9288             1,472,303               10               32
           4           A                1,348,777        0.9305             1,449,519               10               21
           5           C                  773,697        0.9685               798,861               10            1,429
           6           C                  863,481        0.9756               885,077                9              670
           7           C                  682,645        0.9470               720,850               11              344
           8           C                  772,102        0.9029               855,136               10              137
           9           D3               3,725,289        1.0510             3,544,519               20            1,380
          10           F1                 649,209        0.9810               661,783                6               24
          11           F1                 647,356        1.0782               600,404                3                9
          12           F1                 680,928        0.9910               687,112                2                4
  RANDOM TOTALS:                       14,252,343                          14,457,995              111            4,181
  CATG J  EXCEPTION VALUES:            14,858,530                          15,123,650
  CATG D1 EXCEPTION VALUES:             4,496,842                           5,780,753
  CATG F1 EXCEPTION VALUES:               429,787                             408,626
 TOTAL TEST VALUES (4):                34,037,502                          35,771,024
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 1,788,551
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  33,982,473 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   34,037,502 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  37,559,575 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   44,402,009 (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