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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:10:32                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              091/Grayson                                               VRSN:      W
                                                        091-903/Denison ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              151,141,973        1.1462           131,863,526              50            3,996         .045873766
      2           A              151,184,341        1.0314           146,581,676              69            2,145         .016239765
      3           A              151,102,087        1.0214           147,936,251              74            1,384         .006579438
      4           A              151,107,487        1.0019           150,820,927              48              709         .012726598
      5           D3              50,722,700        1.0256            49,456,611              21            2,306         .043440330
      6           F1              40,786,630        1.0849            37,594,829              13              422         .024897640
      7           F1              41,507,504        0.6289            66,000,165               9               96         .455049355
      8           F1              40,519,276        0.8597            47,131,879               7               25         .070205137
      9           L1              29,208,516        0.9049            32,278,170               7              403         .057524571
     10           L1              29,347,498        0.9827            29,864,148               7               77         .000273439
     11           L1              30,639,662        1.0031            30,544,973               5               21         .009831913
     12           L1              27,619,949        1.0011            27,589,600               4                5         .004036616
  RANDOM TOTALS:                 894,887,623                         897,662,755             314           11,589
  CATG D1 EXCEPTION VALUES:        4,026,041                           2,681,907
  CATG F1 EXCEPTION VALUES:       38,272,255                          35,688,082
 TOTAL TEST VALUES (4):          937,185,919                         936,032,744
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           46,801,637
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            889,231,107 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             937,185,919 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            982,834,381 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             965,321,487 (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