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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:18:16                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              188/Potter                                                VRSN:      P
                                                        188-902/River Road ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               38,248,926        1.0399            36,781,350               13              608
           2           A               38,270,242        1.0266            37,278,630               16              426
           3           A               38,286,803        1.0476            36,547,158               13              359
           4           A               37,990,343        1.0071            37,722,513               13              262
  RANDOM TOTALS:                      152,796,314                         148,329,651               55            1,655
  CATG J  EXCEPTION VALUES:             8,611,618                           8,768,342
  CATG D1 EXCEPTION VALUES:             2,803,601                           3,454,710
 TOTAL TEST VALUES (4):               164,211,533                         160,552,703
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 8,027,635
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 152,525,068 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  164,211,533 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 168,580,338 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  179,816,521 (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