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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:25:35                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              249/Wise                                                  VRSN:      W
                                                        249-903/Bridgeport ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               60,749,687        0.9707            62,583,380              33            1,045         .023893168
      2           A               60,673,263        1.0024            60,527,996              28              602         .014168634
      3           A               60,748,818        1.0011            60,682,068              28              404         .024604182
      4           A               60,635,424        1.0443            58,063,223              13              219         .013609532
      5           D3              85,859,960        0.9649            88,983,273              29            2,958         .030593021
      6           F1              16,493,703        0.9568            17,238,402               7              176         .002395299
      7           F1              16,603,479        0.9935            16,712,108               6               70         .003818823
      8           F1              16,389,701        0.9508            17,237,801               8               34         .005039506
      9           F1              16,333,780        1.0208            16,000,960               9               16         .004232469
     10           G1              18,503,079        0.9196            20,120,791               7              196         .009500360
     11           G1              18,577,645        0.8818            21,067,867               6               89         .135535329
     12           G1              18,286,577        1.0767            16,983,911               6               55         .018809436
     13           G1              18,381,397        1.0479            17,541,175               6               27         .005989574
     14           L1               7,882,826        0.9942             7,928,813               8              188         .006040650
     15           L1               7,848,860        0.9550             8,218,702               6               52         .010284895
     16           L1               8,304,514        1.0278             8,079,893               7               24         .001975485
     17           L1               7,362,889        1.0344             7,118,029               4                8         .004901920
  RANDOM TOTALS:                 499,635,602                         505,088,392             211            6,163
  CATG J  EXCEPTION VALUES:       17,132,479                          17,294,950
  CATG D1 EXCEPTION VALUES:        4,199,870                           3,877,745
 TOTAL TEST VALUES (4):          520,967,951                         526,261,087
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           26,313,054
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            499,948,033 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             520,967,951 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            552,574,141 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             879,891,007 (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