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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:54:40                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              107/Henderson                                             VRSN:      W
                                                        107-907/Trinidad ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                2,639,297        1.0088             2,616,274               8              126         .005780521
      2           A                2,650,102        1.0242             2,587,485               6               76         .011160793
      3           A                2,610,185        1.0135             2,575,417               6               50         .003779581
      4           A                2,614,639        0.9679             2,701,352               6               33         .003238667
      5           D3               1,772,660        0.9192             1,928,481               9              159         .004326191
      6           G1              14,674,456        0.9701            15,126,746               6               10         .014501795
  RANDOM TOTALS:                  26,961,339                          27,535,755              41              454
  CATG J  EXCEPTION VALUES:       11,383,060                          11,473,397
  CATG D1 EXCEPTION VALUES:          585,080                             554,946
 TOTAL TEST VALUES (4):           38,929,479                          39,564,098
 MARGIN OF ERROR PERCENT:          5.0000003
 MARGIN OF ERROR VALUE:            1,978,205
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             37,585,893 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              38,929,479 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             41,542,303 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              47,318,813 (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