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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:39:51                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              229/Tyler                                                 VRSN:      W
                                                        229-904/Warren ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               26,808,895        0.9340            28,703,314              15              839         .015951958
      2           A               26,838,297        0.9496            28,262,739              15              413         .013117708
      3           A               26,763,284        0.9867            27,124,034              15              271         .007992846
      4           A               26,794,062        0.9967            26,882,775              15              165         .001906397
      5           C                2,606,263        0.9802             2,658,909              15            1,598         .002690580
      6           C                2,583,558        0.9440             2,736,820              15              949         .123047307
      7           C                2,600,191        0.9084             2,862,386              15              440         .015175132
      8           C                2,581,319        0.9470             2,725,786              15              197         .006965170
      9           D3              32,589,459        0.9725            33,511,012              19            4,483         .001994657
     10           G1               4,639,587        1.0136             4,577,335              11               28         .032438522
     11           G1               4,619,085        0.9696             4,763,908               6                9         .025615072
  RANDOM TOTALS:                 159,424,000                         164,809,018             156            9,392
  CATG D1 EXCEPTION VALUES:       35,108,600                          34,622,929
  CATG G1 EXCEPTION VALUES:       13,366,503                          13,126,566
 TOTAL TEST VALUES (4):          207,899,103                         212,558,513
 MARGIN OF ERROR PERCENT:          5.0000002
 MARGIN OF ERROR VALUE:           10,627,926
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            201,930,587 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             207,899,103 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            223,186,439 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             187,477,349 (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