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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:43:03                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              054/Crosby                                                VRSN:      W
                                                        054-901/Crosbyton CISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                7,788,965        1.0056             7,745,590              22              308         .091065780
      2           A                7,772,449        0.9038             8,599,744              16              166         .051226826
      3           A                7,804,424        1.0268             7,600,725              10              100         .052765155
      4           A                7,736,652        0.8501             9,100,873              11               58         .040323470
      5           D3               4,461,040        0.7204             6,192,449              20            1,629         .219305337
      6           F1               1,101,911        1.0059             1,095,448               6               59         .014770376
      7           F1               1,113,572        0.9501             1,172,058               5               22         .073051050
      8           F1               1,159,494        0.9498             1,220,777               4               10         .003708729
      9           F1               1,006,634        0.8989             1,119,851               2                3         .000226146
  RANDOM TOTALS:                  39,945,141                          43,847,515              96            2,355
  CATG J  EXCEPTION VALUES:        1,344,310                           1,250,139
  CATG D1 EXCEPTION VALUES:       18,457,710                          12,415,872
 TOTAL TEST VALUES (4):           59,747,161                          57,513,526
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            2,875,676
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             54,637,850 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              59,747,161 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             60,389,202 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              62,748,543 (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