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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:44:12                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              059/Deaf Smith                                            VRSN:      W
                                                        059-901/Hereford ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               53,943,993        0.9219            58,513,931              30            1,742         .018879806
      2           A               53,961,075        0.9701            55,624,240              43              960         .007491816
      3           A               53,948,691        1.0162            53,088,655              45              649         .005031941
      4           A               53,839,611        0.9760            55,163,536              19              387         .008176652
      5           D3              48,194,530        0.9870            48,829,311              14            2,917         .032264086
      6           F1              17,171,995        0.9856            17,422,885              10              248         .051958869
      7           F1              17,348,103        1.0051            17,260,077               7              101         .019980021
      8           F1              17,523,911        0.9867            17,760,121               6               43         .002889155
      9           F1              16,556,520        0.8884            18,636,335               4               12         .025816405
     10           L1              16,387,520        0.9688            16,915,277               9              270         .001304481
     11           L1              16,331,306        0.8819            18,518,320               6               59         .047783282
     12           L1              16,810,523        0.9996            16,817,250               6               28         .000452750
     13           L1              15,834,096        0.9815            16,132,548               4                9         .000347047
  RANDOM TOTALS:                 397,851,874                         410,682,486             203            7,425
  CATG J  EXCEPTION VALUES:       32,133,704                          31,159,145
  CATG D1 EXCEPTION VALUES:       31,169,034                          18,920,251
 TOTAL TEST VALUES (4):          461,154,612                         460,761,882
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           23,038,094
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            437,723,788 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             461,154,612 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            483,799,976 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             555,584,954 (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