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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:35:46                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              018/Bosque                                                VRSN:      W
                                                        018-908/Cranfills Gap ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                1,432,821        0.9569             1,497,357               6               58         .005490582
      2           A                1,431,538        0.9720             1,472,776               6               35         .006889776
      3           A                1,414,732        0.9572             1,477,990               5               20         .002457337
      4           A                1,386,977        0.9846             1,408,671               4               11         .005318105
      5           D3              26,912,610        0.9878            27,244,999              21            1,110         .002714166
  RANDOM TOTALS:                  32,578,678                          33,101,793              42            1,234
  CATG D1 EXCEPTION VALUES:        4,435,050                           3,794,706
 TOTAL TEST VALUES (4):           37,013,728                          36,896,499
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:            1,844,825
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             35,051,674 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              37,013,728 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             38,741,324 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              36,416,661 (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