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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:35:41                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              018/Bosque                                                VRSN:      W
                                                        018-906/Iredell ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                2,000,628        0.9606             2,082,686               7               71         .001650661
      2           A                1,964,003        0.9816             2,000,818               7               44         .003708008
      3           A                1,974,580        0.9521             2,073,921               6               30         .004137411
      4           A                1,976,429        1.0071             1,962,495               5               16         .010779090
      5           D3              26,381,060        0.9717            27,149,388              29            1,394         .008960617
  RANDOM TOTALS:                  34,296,700                          35,269,308              54            1,555
  CATG J  EXCEPTION VALUES:        1,705,053                           1,752,055
  CATG D1 EXCEPTION VALUES:        7,502,440                           6,281,313
 TOTAL TEST VALUES (4):           43,504,193                          43,302,676
 MARGIN OF ERROR PERCENT:          5.0000005
 MARGIN OF ERROR VALUE:            2,165,134
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             41,137,542 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              43,504,193 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             45,467,810 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              47,059,343 (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