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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:12:34                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              147/Limestone                                             VRSN:      P
                                                        147-902/Groesbeck ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               31,990,402        0.9927            32,225,649               18            1,172
           2           A               32,089,298        0.9353            34,309,097               15              605
           3           A               32,011,092        0.9211            34,753,113               15              392
           4           A               31,919,318        0.9811            32,534,215               15              229
           5           D3              65,857,647        0.9610            68,530,330               50            5,988
           6           G1             245,430,810        0.9692           253,230,303               20              502
  RANDOM TOTALS:                      439,298,567                         455,582,707              133            8,888
  CATG J  EXCEPTION VALUES:            36,372,021                          38,171,646
  CATG D1 EXCEPTION VALUES:            13,197,830                          12,814,936
 TOTAL TEST VALUES (4):               488,868,418                         506,569,289
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                25,328,464
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 481,240,825 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  488,868,418 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 531,897,753 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                1,007,088,585 (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