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DATE: 01/27/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:02:41                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              213/Somervell                                             VRSN:      W
                                                        213-901/Glen Rose ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               37,128,332        0.9870            37,617,358              16              602         .003521475
      2           A               36,991,924        0.9953            37,166,607              12              308         .007255679
      3           A               37,182,290        1.0017            37,119,187              11              204         .007223402
      4           A               36,864,341        0.9530            38,682,414              10              125         .015027230
      5           D3             133,607,370        0.9220           144,910,380              28            2,771         .194811455
      6           F1               8,852,164        0.7566            11,699,926               8              115         .110201769
      7           F1               8,962,418        0.8519            10,520,505              12               40         .016302978
      8           F1               8,731,393        0.9079             9,617,131               6               17         .007546949
  RANDOM TOTALS:                 308,320,232                         327,333,508             103            4,182
  CATG J  EXCEPTION VALUES:       34,337,385                          36,036,694
  CATG D1 EXCEPTION VALUES:        6,162,136                           5,760,648
  CATG F1 EXCEPTION VALUES:        9,286,488                          12,691,156
 TOTAL TEST VALUES (4):          358,106,241                         381,822,006
 MARGIN OF ERROR PERCENT:          6.3794898
 MARGIN OF ERROR VALUE:           24,358,296
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            357,463,710 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             358,106,241 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            406,180,302 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,774,974,955 (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