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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:57:23                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              043/Collin                                                VRSN:      W
                                                        043-905/Frisco ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A            1,231,922,228        1.0077         1,222,508,909               59            6,504
           2           A            1,231,974,330        1.0061         1,224,504,850               58            5,218
           3           A            1,232,052,048        1.0044         1,226,654,767               57            4,124
           4           A            1,232,107,249        1.0078         1,222,571,194               55            2,175
           5           B              124,925,134        1.0173           122,800,682               11              242
           6           B              107,911,791        0.8285           130,249,597                3                6
           7           C               87,181,202        1.1070            78,754,473                7            2,083
           8           C               86,742,459        0.9490            91,404,066                9            1,263
           9           C               87,325,371        0.9108            95,877,658                7              148
          10           C               86,559,878        0.9839            87,976,296                8               25
          11           D3             378,686,816        1.0007           378,421,921                9           28,124
          12           F1             347,234,140        1.0078           344,546,676               10              146
          13           F1             357,253,737        0.9170           389,589,680                7               36
          14           F1             396,253,332        0.8792           450,697,602                7               14
          15           L1              98,930,423        0.8681           113,962,012                7              520
          16           L1              99,426,232        1.0045            98,980,818                8               87
          17           L1             102,714,084        0.9388           109,409,974                8               21
          18           L1              94,392,013        0.8792           107,361,252                4                7
  RANDOM TOTALS:                    7,383,592,467                       7,496,272,427              334           50,743
  CATG D1 EXCEPTION VALUES:             3,374,331                           2,989,260
  CATG B  EXCEPTION VALUES:           229,448,621                         273,916,784
  CATG F1 EXCEPTION VALUES:           292,569,426                         274,379,796
 TOTAL TEST VALUES (4):             7,908,984,845                       8,047,558,267
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:               402,377,913
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               7,645,180,354 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                7,908,984,845 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               8,449,936,180 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                7,941,510,843 (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