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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:13:00                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              101/Harris                                                VRSN:      W
                                                        101-909/North Forest ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              211,025,889        0.8957           235,598,849              18            5,091         .079948881
      2           A              209,026,332        0.9525           219,450,217              21            3,365         .006640480
      3           A              208,707,174        0.9859           211,692,032              31            2,729         .005171432
      4           A              209,480,553        1.0227           204,830,892              15            1,960         .004713878
      5           F1              37,494,029        0.9845            38,084,336               8              316         .057353238
      6           F1              38,429,978        1.0161            37,821,059               7               64         .105179572
      7           F1              36,411,394        0.9162            39,741,753               5               14         .039668310
      8           F1              37,096,239        1.0250            36,191,453               3                5         .005756259
      9           L1              27,934,279        0.9668            28,893,545               7              449         .010966857
     10           L1              28,639,673        0.9262            30,921,694               6               48         .020725629
     11           L1              27,737,482        0.9004            30,805,733               5               15         .017821988
     12           L1              26,365,325        0.8308            31,734,864               3                6         .015438256
  RANDOM TOTALS:               1,098,348,347                       1,145,766,427             129           14,062
  CATG D1 EXCEPTION VALUES:        4,879,035                           4,872,696
 TOTAL TEST VALUES (4):        1,103,227,382                       1,150,639,123
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           57,531,956
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,093,107,167 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,103,227,382 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,208,171,079 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,193,766,227 (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