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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:55:46                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              109/Hill                                                  VRSN:      W
                                                        109-910/Mount Calm ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                1,729,634        0.6897             2,507,806               6               68         .129504722
      2           A                1,723,742        0.8575             2,010,195               7               40         .021790773
      3           A                1,754,393        0.9497             1,847,313               8               27         .084356770
      4           A                1,659,276        0.9367             1,771,406               5               17         .010300364
      5           D3              10,860,660        1.0315            10,528,997              20              665         .087162559
  RANDOM TOTALS:                  17,727,705                          18,665,717              46              817
  CATG J  EXCEPTION VALUES:        1,234,043                           1,138,463
  CATG D1 EXCEPTION VALUES:        2,761,149                           2,257,028
 TOTAL TEST VALUES (4):           21,722,897                          22,061,208
 MARGIN OF ERROR PERCENT:          7.2651144
 MARGIN OF ERROR VALUE:            1,602,772
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             20,458,436 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              21,722,897 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             23,663,980 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              19,463,455 (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