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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:41:09                                       2005 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   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A            1,519,963,193        0.9847         1,543,579,966              81            7,856         .001583042
      2           A            1,519,991,135        0.9894         1,536,275,657              83            6,221         .001250710
      3           A            1,519,903,482        0.9828         1,546,503,339              78            4,851         .002082359
      4           A            1,519,862,274        0.9716         1,564,288,055              79            2,522         .003081360
      5           B              148,375,706        1.0030           147,931,910              57              242         .002615470
      6           B              130,159,575        0.9440           137,880,906               3                6         .004374860
      7           B              138,944,456        0.9264           149,983,221               4                5         .005562211
      8           C               61,182,704        0.7545            81,090,396               6            2,244         .000914267
      9           C               61,714,194        0.9209            67,015,087               8            1,376         .019485099
     10           C               60,724,206        0.9572            63,439,413              10              203         .005400848
     11           C               61,088,762        0.9704            62,952,146               6               34         .006825139
     12           D3             413,354,564        0.9825           420,717,113              15            1,236         .003600739
     13           F1             406,240,049        0.7992           508,308,370              11              179         .213630615
     14           F1             405,997,242        0.8712           466,020,709               6               42         .009651851
     15           F1             404,565,289        0.9174           440,991,159               5               14         .000630033
     16           F1             395,144,507        0.9847           401,284,155               3                4         .002636047
     17           L1             109,212,122        0.9713           112,439,125               7              685         .001077219
     18           L1             109,453,068        0.8706           125,721,420               7              125         .057684268
     19           L1             108,261,340        0.9547           113,398,282               6               31         .000473124
     20           L1             108,718,064        0.9538           113,984,131               4               12         .000364543
  RANDOM TOTALS:               9,202,855,932                       9,603,804,560             479           27,888
  CATG J  EXCEPTION VALUES:          362,040                             375,820
  CATG D1 EXCEPTION VALUES:        3,052,682                           2,765,914
  CATG B  EXCEPTION VALUES:       98,377,621                          99,818,600
 TOTAL TEST VALUES (4):        9,304,648,275                       9,706,764,894
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          485,338,245
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          9,221,426,649 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           9,304,648,275 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:         10,192,103,139 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           9,425,818,423 (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