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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:37:21                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              217/Stonewall                                             VRSN:      W
                                                        217-901/Aspermont Cons ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                2,560,906        0.9121             2,807,703               9              219         .007302967
      2           A                2,556,347        0.9816             2,604,265               8              111         .004811297
      3           A                2,562,637        0.9456             2,710,065               6               72         .007305919
      4           A                2,538,324        0.9906             2,562,411               9               38         .005578672
      5           D3               9,018,699        0.8966            10,058,776              11            2,885         .014420213
      6           G1              18,255,650        1.1137            16,391,892               6               78         .016220989
      7           G1              17,975,070        1.0991            16,354,354               5               24         .020808400
      8           G1              20,321,430        1.0311            19,708,496               4               10         .003843783
      9           G1              15,058,640        0.9639            15,622,616               2                3         .000557389
  RANDOM TOTALS:                  90,847,703                          88,820,578              60            3,440
  CATG J  EXCEPTION VALUES:        3,445,810                           3,483,231
  CATG D1 EXCEPTION VALUES:       18,980,680                          20,479,635
 TOTAL TEST VALUES (4):          113,274,193                         112,783,444
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            5,639,172
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            107,144,272 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             113,274,193 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            118,422,616 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             123,033,681 (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