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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:44:04                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              252/Young                                                 VRSN:      W
                                                        252-901/Graham ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               53,692,282        0.9269            57,926,726              39            1,676         .125371786
      2           A               53,619,001        0.9800            54,713,266              20              902         .064039894
      3           A               53,689,261        0.9845            54,534,546              22              552         .044303722
      4           A               53,590,847        0.9028            59,360,708              14              303         .072505148
      5           D3              48,585,950        0.8922            54,456,344              55            5,300         .298134497
      6           F1              10,017,767        0.7469            13,412,461               9              242         .157670655
      7           F1              10,031,714        0.8565            11,712,451               8               96         .118144478
      8           F1              10,211,381        0.7886            12,948,746               8               30         .149011628
      9           F1               9,790,473        0.9544            10,258,249               4                7         .002155530
     10           G1              21,800,630        0.9621            22,659,422               7              323         .023616003
     11           G1              21,553,460        0.8898            24,222,814               6               85         .065613977
     12           G1              22,569,869        0.9963            22,653,688               6               27         .011460315
     13           G1              20,768,140        1.0749            19,320,997               2                3         .000018890
     14           L1               7,341,894        0.9900             7,416,055               9              215         .001083776
     15           L1               7,220,428        1.0149             7,114,423               8               49         .012043376
     16           L1               7,486,232        0.9924             7,543,563               7               19         .001137831
  RANDOM TOTALS:                 411,969,329                         440,254,459             224            9,829
  CATG J  EXCEPTION VALUES:       29,828,384                          31,003,148
  CATG D1 EXCEPTION VALUES:       23,275,187                          20,844,297
  CATG L1 EXCEPTION VALUES:       11,322,820                          11,889,011
 TOTAL TEST VALUES (4):          476,395,720                         503,990,915
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           25,199,546
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:             476,395,720 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:            478,791,369 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            529,190,461 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             491,324,120 (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