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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:05:14                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              061/Denton                                                VRSN:      W
                                                        061-906/Ponder ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               24,684,814        0.9805            25,175,741               7              343         .006194319
      2           A               24,685,092        0.9952            24,804,152              13              213         .001540774
      3           A               24,611,711        0.9923            24,802,692               7              159         .000441731
      4           A               24,544,308        0.9525            25,768,302               8              106         .014988446
      5           D3              54,203,951        1.0270            52,778,920              18            1,454         .006200058
      6           G1             120,668,187        1.0203           118,267,360               7              215         .008945312
      7           G1             119,553,967        0.9857           121,288,391               7              120         .002021275
      8           G1             121,605,052        1.0424           116,658,722               6               80         .006042839
      9           G1             117,921,207        1.0250           115,045,080               6               31         .047457296
  RANDOM TOTALS:                 632,478,289                         624,589,360              79            2,721
  CATG D1 EXCEPTION VALUES:        3,524,830                           3,203,353
 TOTAL TEST VALUES (4):          636,003,119                         627,792,713
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:           31,389,636
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            596,403,077 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             636,003,119 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            659,182,349 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             628,414,604 (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