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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:43:18                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              247/Wilson                                                VRSN:      W
                                                        247-904/Poth ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               11,628,113        0.9691            11,998,878               9              291         .002547361
      2           A               11,666,777        0.9020            12,934,343               8              170         .002035522
      3           A               11,571,553        1.0138            11,414,039               8              119         .003696928
      4           A               11,596,827        1.0367            11,186,290               8               79         .008513359
      5           D3              45,872,191        0.9876            46,448,148              20            2,726         .013075835
  RANDOM TOTALS:                  92,335,461                          93,981,698              53            3,385
  CATG D1 EXCEPTION VALUES:       15,956,200                          15,368,139
 TOTAL TEST VALUES (4):          108,291,661                         109,349,837
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:            5,467,492
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            103,882,345 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             108,291,661 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            114,817,329 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             116,906,040 (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