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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:36:11                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              019/Bowie                                                 VRSN:      W
                                                        019-910/Malta ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                1,066,672        0.8619             1,237,582               8               40         .016630891
      2           A                1,023,474        0.9348             1,094,859               6               18         .023610254
      3           A                1,075,581        1.0197             1,054,801               7               13         .013605075
      4           A                  946,615        0.9497               996,752               5                8         .021629659
      5           D3               8,675,026        0.9609             9,028,022              21              391         .087458822
  RANDOM TOTALS:                  12,787,368                          13,412,016              47              470
  CATG J  EXCEPTION VALUES:          566,965                             547,299
  CATG D1 EXCEPTION VALUES:          813,107                             880,616
 TOTAL TEST VALUES (4):           14,167,440                          14,839,931
 MARGIN OF ERROR PERCENT:          7.7948004
 MARGIN OF ERROR VALUE:            1,156,743
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             13,683,188 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              14,167,440 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             15,996,674 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              11,628,706 (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