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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:33:05                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              188/Potter                                                VRSN:      W
                                                        188-902/River Road ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               39,406,690        1.0478            37,608,981              14              615         .097436771
      2           A               39,476,106        0.9919            39,798,474              14              430         .010747746
      3           A               39,467,368        1.0448            37,775,046              14              362         .037303247
      4           A               39,241,137        0.9708            40,421,443              14              262         .003086861
      5           G1              19,132,409        1.0410            18,378,875              20               41         .008541846
  RANDOM TOTALS:                 176,723,710                         173,982,819              76            1,710
  CATG J  EXCEPTION VALUES:        8,808,444                           8,937,245
  CATG D1 EXCEPTION VALUES:        2,768,896                           3,452,886
 TOTAL TEST VALUES (4):          188,301,050                         186,372,950
 MARGIN OF ERROR PERCENT:          5.0000003
 MARGIN OF ERROR VALUE:            9,318,648
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            177,054,302 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             188,301,050 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            195,691,598 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             189,434,325 (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