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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:02:20                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              044/Collingsworth                                         VRSN:      W
                                                        044-904/Samnorwood ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           D3               3,471,220        0.9035             3,841,970              28              986         .043012351
      2           G1               3,874,010        1.0749             3,604,065              14               74         .020095705
      3           G1               3,924,070        1.0467             3,748,992              12               39         .011650424
      4           G1               3,894,970        1.0559             3,688,768              11               26         .008436663
      5           G1               3,706,990        1.1591             3,198,162               8               14         .008999752
  RANDOM TOTALS:                  18,871,260                          18,081,957              73            1,139
  CATG J  EXCEPTION VALUES:        1,271,545                           1,438,829
  CATG D1 EXCEPTION VALUES:       10,823,610                          10,738,315
 TOTAL TEST VALUES (4):           30,966,415                          30,259,101
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            1,512,955
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             28,746,146 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              30,966,415 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             31,772,056 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              35,344,390 (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