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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:43:35                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              057/Dallas                                                VRSN:      W
                                                        057-909/Garland ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A            2,205,659,590        0.9853         2,238,566,518              41           22,883         .003952060
      2           A            2,203,029,806        1.0046         2,192,942,272              49           17,686         .004077222
      3           A            2,203,848,329        0.9875         2,231,745,143              48           14,153         .002870099
      4           A            2,204,279,249        0.9920         2,222,055,695              49            9,430         .003153962
      5           B              137,127,737        0.9972           137,512,773              48              902         .001494177
      6           B              139,330,711        0.9262           150,432,640               7               54         .025761909
      7           B              139,205,574        0.8731           159,438,293               5               19         .026541086
      8           B              132,791,404        0.9413           141,072,351               4                9         .011575391
      9           F1             428,765,037        0.9917           432,353,572              13            1,163         .006699363
     10           F1             432,098,094        0.9684           446,197,949               9              349         .007782246
     11           F1             426,305,585        0.9371           454,920,057               8              124         .009031526
     12           F1             426,508,638        0.9451           451,284,137               6               46         .004638242
     13           L1             208,750,188        1.0658           195,862,439               7            1,233         .016439074
     14           L1             209,479,999        1.0355           202,298,406               7              171         .002390301
     15           L1             217,201,867        1.0293           211,019,010               7               48         .002077482
     16           L1             199,713,593        1.0294           194,009,708               7                9         .007600105
  RANDOM TOTALS:              11,914,095,401                      12,061,710,963             315           68,279
  CATG D1 EXCEPTION VALUES:          543,984                             555,737
 TOTAL TEST VALUES (4):       11,914,639,385                      12,062,266,700
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          603,113,335
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:         11,459,153,365 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:          11,914,639,385 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:         12,665,380,035 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):          12,144,066,542 (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