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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:12:18                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              178/Nueces                                                VRSN:      W
                                                        178-908/Port Aransas ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              176,218,202        0.9584           183,867,072              37            1,533         .008760862
      2           A              171,669,270        0.9697           177,033,381              37              946         .006487771
      3           A              174,775,732        0.9427           185,399,100              22              674         .007985467
      4           A              172,930,242        0.9450           182,994,965              21              381         .002378838
      5           C               18,810,824        0.9371            20,073,444               7              503         .016839088
      6           C               18,849,521        0.9802            19,230,281               7              240         .017870053
      7           C               18,717,482        1.0366            18,056,610               7              135         .004602227
      8           C               18,724,894        1.0068            18,598,425               6               62         .000448616
      9           D3              50,276,313        1.0209            49,247,050               9              169         .000202706
     10           F1              17,480,438        0.8956            19,518,131               9              111         .015029669
     11           F1              17,562,544        0.9386            18,711,426               8               46         .014587460
     12           F1              17,308,584        1.0155            17,044,396               7               23         .050749038
     13           F1              17,170,363        0.9102            18,864,385               7               12         .039403195
  RANDOM TOTALS:                 890,494,409                         928,638,666             184            4,835
  CATG D1 EXCEPTION VALUES:          101,947                              90,232
 TOTAL TEST VALUES (4):          890,596,356                         928,728,898
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           46,436,445
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            882,292,453 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             890,596,356 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            975,165,343 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             945,876,411 (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