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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:21:18                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              229/Tyler                                                 VRSN:      W
                                                        229-901/Colmesneil ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                7,935,673        0.9737             8,150,018              15              397         .003630264
      2           A                7,924,458        1.0233             7,744,022              15              219         .025760290
      3           A                7,939,921        0.9696             8,188,862              15              146         .020253364
      4           A                7,896,591        0.9735             8,111,547              16               86         .006635367
      5           D3              21,528,912        0.9789            21,992,964              20            3,885         .000851624
  RANDOM TOTALS:                  53,225,555                          54,187,413              81            4,733
  CATG J  EXCEPTION VALUES:        3,944,334                           3,915,687
  CATG D1 EXCEPTION VALUES:       25,551,865                          25,792,789
 TOTAL TEST VALUES (4):           82,721,754                          83,895,889
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            4,194,794
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             79,701,095 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              82,721,754 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             88,090,683 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              84,211,177 (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