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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:14:12                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              186/Pecos                                                 VRSN:      W
                                                        186-901/Buena Vista ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           D3               5,447,430        0.6589             8,267,461              14            3,544         .193373325
      2           G1              21,859,750        1.1952            18,289,617               7              141         .062985743
      3           G1              22,069,800        1.0905            20,238,239               6               45         .023281953
      4           G1              22,563,586        1.0133            22,267,429               5               18         .002536443
      5           G1              20,923,570        1.0529            19,872,324               4                7         .014627346
  RANDOM TOTALS:                  92,864,136                          88,935,070              36            3,755
  CATG J  EXCEPTION VALUES:       11,023,478                          10,319,880
  CATG D1 EXCEPTION VALUES:        4,520,734                           6,487,513
  CATG G1 EXCEPTION VALUES:       30,464,040                          31,863,591
 TOTAL TEST VALUES (4):          138,872,388                         137,606,054
 MARGIN OF ERROR PERCENT:          5.0000002
 MARGIN OF ERROR VALUE:            6,880,303
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            130,725,751 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             138,872,388 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            144,486,357 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             217,513,527 (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