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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:15:23                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              194/Red River                                             VRSN:      W
                                                        194-904/Clarksville ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               15,058,692        1.0424            14,446,174               8              847         .008632025
      2           A               14,963,168        1.0496            14,256,067              12              467         .007131609
      3           A               15,007,290        1.0513            14,274,983               7              302         .008445321
      4           A               14,957,583        0.9851            15,183,822              10              188         .003230677
      5           D3              40,224,220        1.0145            39,649,305              39            4,667         .028654538
      6           F1               3,388,308        0.7495             4,520,758               7              110         .333909731
      7           F1               3,351,665        0.9438             3,551,245               6               38         .056652562
      8           F1               3,425,403        0.8593             3,986,271               5               14         .005883605
      9           F1               3,240,370        0.9728             3,330,972               2                3         .009832552
     10           L1               1,797,996        1.0616             1,693,666               7               96         .023924949
     11           L1               1,811,352        1.1313             1,601,124               6               35         .037660364
     12           L1               1,743,979        0.9782             1,782,845               5               14         .011079964
     13           L1               1,732,255        1.1500             1,506,309               3                4         .017004453
  RANDOM TOTALS:                 120,702,281                         119,783,541             117            6,785
  CATG D1 EXCEPTION VALUES:       37,051,930                          36,802,993
 TOTAL TEST VALUES (4):          157,754,211                         156,586,534
 MARGIN OF ERROR PERCENT:          5.0000002
 MARGIN OF ERROR VALUE:            7,829,327
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            148,757,207 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             157,754,211 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            164,415,861 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             187,900,243 (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