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DATE: 01/27/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:00:29                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              108/Hidalgo                                               VRSN:      W
                                                        108-907/Mercedes ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               39,193,453        0.9865            39,729,805              10            1,587         .015540721
      2           A               39,187,672        0.9544            41,060,008               9            1,027         .001979223
      3           A               39,155,440        0.9830            39,832,594              10              702         .007000371
      4           A               39,157,072        0.9477            41,318,004              10              401         .020200698
      5           C                4,036,949        0.9726             4,150,678               7              601         .006144078
      6           C                4,012,627        0.9032             4,442,678               7              373         .029347884
      7           C                4,028,531        0.9417             4,277,935               7              262         .005188142
      8           C                4,003,896        1.1041             3,626,389               7               97         .008430057
      9           D3              11,655,049        0.9825            11,862,645              10            1,200         .009214948
     10           F1               6,086,415        0.9844             6,182,868               6              120         .015376067
     11           F1               6,014,279        0.8813             6,824,327               6               50         .002885516
     12           F1               6,237,320        0.9509             6,559,386               7               23         .007132375
     13           F1               5,769,790        1.0290             5,607,182               5                7         .015432470
     14           L1               5,563,847        1.0583             5,257,344               7              121         .006750503
     15           L1               5,797,098        1.0340             5,606,478               6               18         .001371476
     16           L1               6,597,385        0.9839             6,705,341               3                5         .002103928
  RANDOM TOTALS:                 226,496,823                         233,043,662             117            6,594
  CATG J  EXCEPTION VALUES:       10,789,282                          11,642,071
  CATG D1 EXCEPTION VALUES:        7,566,285                           7,426,212
  CATG L1 EXCEPTION VALUES:        4,232,972                           3,681,113
 TOTAL TEST VALUES (4):          249,085,362                         255,793,058
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           12,789,653
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            243,003,405 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             249,085,362 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            268,582,711 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             222,259,692 (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