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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:48:36                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              080/Franklin                                              VRSN:      W
                                                        080-901/Mount Vernon ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               89,967,314        0.9948            90,437,589              34            1,230         .004926146
      2           A               89,932,638        0.9592            93,757,963              22              516         .014873348
      3           A               90,126,711        0.9263            97,297,540              18              303         .018683739
      4           A               89,743,457        1.0216            87,845,984              16              169         .017051338
      5           C                8,552,644        1.0088             8,478,037              37            3,332         .049254673
      6           C                8,597,895        1.0103             8,510,240              18              263         .021267678
      7           C                8,563,698        1.0066             8,507,548               8              110         .000577034
      8           C                8,470,813        1.0783             7,855,711               6               36         .037524388
      9           D3              96,327,320        0.9294           103,644,631              63            5,672         .037691743
  RANDOM TOTALS:                 490,282,490                         506,335,243             222           11,631
  CATG D1 EXCEPTION VALUES:       12,334,790                          14,963,537
 TOTAL TEST VALUES (4):          502,617,280                         521,298,780
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           26,064,939
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            495,233,841 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             502,617,280 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            547,363,719 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             634,969,142 (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