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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:10:47                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              091/Grayson                                               VRSN:      W
                                                        091-910/Whitewright ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               16,376,429        1.1652            14,054,608              13              384         .037880022
      2           A               16,417,328        1.0227            16,052,927               8              229         .001092353
      3           A               16,386,207        1.0849            15,103,887               8              156         .006556926
      4           A               16,299,430        1.0059            16,203,827               9               87         .003027176
      5           D3              36,027,766        1.1416            31,559,010              23            1,810         .034685647
      6           F1               1,681,276        0.8961             1,876,215               7               39         .022294030
      7           F1               1,774,805        0.9940             1,785,518               5               15         .004363171
      8           F1               1,938,308        0.9406             2,060,714               5                7         .007750401
  RANDOM TOTALS:                 106,901,549                          98,696,706              78            2,727
  CATG J  EXCEPTION VALUES:        5,744,650                           6,440,842
  CATG D1 EXCEPTION VALUES:        6,027,994                           4,209,408
  CATG F1 EXCEPTION VALUES:        1,495,112                           1,646,110
 TOTAL TEST VALUES (4):          120,169,305                         110,993,066
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            5,549,653
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            105,443,413 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            116,542,719 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             120,169,305 (OUTSIDE CONFIDENCE INTERVAL)
 VALUE ASSIGNED (6):             117,347,388 (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