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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:41:06                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              043/Collin                                                VRSN:      W
                                                        043-904/Farmersville ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               33,466,020        0.9228            36,265,735              11              616         .040709654
      2           A               33,452,274        0.9913            33,745,863              12              392         .025988243
      3           A               33,470,011        0.9994            33,490,105              22              280         .002292640
      4           A               33,344,201        1.0135            32,900,050              14              174         .002909758
      5           D3              74,424,439        0.9138            81,444,998              23            2,500         .208608117
      6           F1               4,723,233        0.8416             5,612,207               6               58         .033578676
      7           F1               4,819,599        0.9273             5,197,454               6               28         .061671041
      8           F1               4,925,506        0.8855             5,562,401               5               15         .018054926
      9           F1               4,384,205        1.0117             4,333,503               3                6         .000888481
  RANDOM TOTALS:                 227,009,488                         238,552,316             102            4,069
  CATG J  EXCEPTION VALUES:       13,423,973                          13,711,245
  CATG D1 EXCEPTION VALUES:        4,008,271                           3,485,661
 TOTAL TEST VALUES (4):          244,441,732                         255,749,222
 MARGIN OF ERROR PERCENT:          6.3791999
 MARGIN OF ERROR VALUE:           16,314,754
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            239,434,468 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             244,441,732 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            272,063,976 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             255,028,556 (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