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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:19:38                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              220/Tarrant                                               VRSN:      W
                                                        220-915/Azle ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              290,507,333        1.0138           286,552,903              47            3,766         .010705253
      2           A              289,859,090        1.0160           285,294,380              47            2,286         .005155638
      3           A              290,312,142        1.0111           287,125,054              54            1,456         .006959548
      4           A              289,767,573        1.0190           284,364,645              49              810         .010515958
      5           C               19,574,969        0.8801            22,241,755               7            1,694         .074863301
      6           C               19,943,890        0.7987            24,970,439               7              683         .065513600
      7           C               19,248,560        0.9749            19,744,138               7              369         .022058762
      8           C               19,514,526        0.9375            20,815,494               9              164         .038921889
      9           F1              25,182,657        0.8491            29,658,058               7              223         .120053038
     10           F1              25,509,766        0.9838            25,929,829               9              104         .057536068
     11           F1              24,857,383        0.9190            27,048,295               6               49         .023463747
     12           F1              25,166,673        0.9203            27,346,162               5               14         .007061254
  RANDOM TOTALS:               1,339,444,562                       1,341,091,152             254           11,618
  CATG D1 EXCEPTION VALUES:        1,879,658                           1,700,509
 TOTAL TEST VALUES (4):        1,341,324,220                       1,342,791,661
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           67,139,583
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,275,652,078 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,341,324,220 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,409,931,244 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,386,322,696 (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