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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:14:15                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              161/McLennan                                              VRSN:      W
                                                        161-903/Midway ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              296,782,554        0.9328           318,163,115               34            3,234
           2           A              296,943,156        0.9831           302,047,763               47            2,413
           3           A              296,811,064        1.0148           292,482,326               34            1,758
           4           A              296,889,717        1.0086           294,358,236               40              992
           5           B               27,737,889        0.9573            28,975,127                7              307
           6           B               27,353,427        0.9449            28,948,489               12              210
           7           B               28,573,913        1.0129            28,210,004                6               38
           8           F1              53,632,614        0.9988            53,697,050                7              244
           9           F1              53,600,713        1.0107            53,033,257                7               94
          10           F1              52,893,406        1.0272            51,492,802                8               42
          11           F1              53,472,650        0.9766            54,753,891                5               16
          12           L1              43,737,188        1.0474            41,757,865                7              456
          13           L1              43,596,269        1.0914            39,945,271                7              122
          14           L1              43,521,299        1.0615            40,999,811                7               39
          15           L1              43,566,954        1.1517            37,828,388                5               13
  RANDOM TOTALS:                    1,659,112,813                       1,666,693,395              233            9,978
  CATG D1 EXCEPTION VALUES:             4,812,688                           5,100,939
  CATG B  EXCEPTION VALUES:            25,475,900                          25,900,756
 TOTAL TEST VALUES (4):             1,689,401,401                       1,697,695,090
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                84,884,755
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               1,612,810,335 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                1,689,401,401 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               1,782,579,845 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                2,335,236,263 (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