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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:38:09                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              220/Tarrant                                               VRSN:      W
                                                        220-918/Eagle Mountain-Saginaw IS
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              504,198,527        0.9810           513,963,840              45            4,898         .006300370
      2           A              498,585,795        1.0053           495,957,222              51            3,640         .002268963
      3           A              501,102,091        1.0104           495,944,271              52            2,818         .004222097
      4           A              500,463,672        1.0087           496,147,191              50            1,387         .005258619
      5           F1             146,529,803        0.9815           149,291,699               7              188         .018957235
      6           F1             145,615,132        0.9971           146,038,644               7               62         .018634498
      7           F1             152,233,968        0.9621           158,230,920               5               23         .001908217
      8           F1             136,287,945        0.9764           139,582,082               5                9         .003653331
      9           L1             106,883,790        1.0581           101,014,828               7              269         .017141541
     10           L1             110,469,241        1.0100           109,375,486               7               46         .017341002
     11           L1             104,605,182        0.9931           105,331,973               3               11         .000250405
  RANDOM TOTALS:               2,906,975,146                       2,910,878,156             239           13,351
  CATG J  EXCEPTION VALUES:       76,099,160                          83,413,823
  CATG D1 EXCEPTION VALUES:        1,608,484                           1,777,759
  CATG L1 EXCEPTION VALUES:      127,562,258                         127,120,380
 TOTAL TEST VALUES (4):        3,112,245,048                       3,123,190,118
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          156,159,506
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          2,967,030,612 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           3,112,245,048 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          3,279,349,624 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           3,995,101,210 (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