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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:11:50                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              095/Hale                                                  VRSN:      W
                                                        095-902/Cotton Center ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                  524,719        0.9313               563,426               7               22         .014726724
      2           A                  531,103        0.9688               548,207               5               12         .000244703
      3           A                  557,395        1.0891               511,794               3                6         .000484266
      4           D3               6,242,580        0.9900             6,305,636              20              727         .005667805
  RANDOM TOTALS:                   7,855,797                           7,929,063              35              767
  CATG J  EXCEPTION VALUES:        1,080,170                             835,212
  CATG D1 EXCEPTION VALUES:       16,381,830                           7,644,803
  CATG A  EXCEPTION VALUES:          402,263                             387,569
 TOTAL TEST VALUES (4):           25,720,060                          16,796,647
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:              839,832
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             15,956,815 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:             17,636,479 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              25,720,060 (OUTSIDE CONFIDENCE INTERVAL)
 VALUE ASSIGNED (6):              27,364,917 (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