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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:41:17                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              238/Ward                                                  VRSN:      W
                                                        238-904/Grandfalls-Royalty ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           D3               2,742,440        0.8591             3,192,224              13            1,097         .025864117
      2           G1              24,775,320        0.9398            26,362,332              11               81         .067189910
      3           G1              25,563,099        1.1237            22,749,042               8               22         .021728349
      4           G1              25,169,271        0.9997            25,176,824               6               10         .007058515
      5           G1              23,399,032        0.9219            25,381,313               2                3         .001264482
  RANDOM TOTALS:                 101,649,162                         102,861,735              40            1,213
  CATG J  EXCEPTION VALUES:        7,232,459                           6,805,173
  CATG D1 EXCEPTION VALUES:          376,850                             522,709
 TOTAL TEST VALUES (4):          109,258,471                         110,189,617
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:            5,509,481
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            104,680,136 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             109,258,471 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            115,699,098 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             124,466,484 (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