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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:24:53                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              245/Willacy                                               VRSN:      P
                                                        245-902/Lyford CISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                9,637,794        0.9432            10,218,187               10              583
           2           A                9,624,674        0.9992             9,632,380               11              339
           3           A                9,656,011        1.0576             9,130,116               10              239
           4           A                9,546,910        0.9085            10,508,431               11              131
           5           D3              16,472,847        0.8153            20,204,645               16          179,030
           6           G1              10,233,004        0.9640            10,615,149                8               18
  RANDOM TOTALS:                       65,171,240                          70,308,908               66          180,340
  CATG J  EXCEPTION VALUES:             7,235,793                           7,345,040
  CATG D1 EXCEPTION VALUES:            48,869,071                          45,472,899
  CATG G1 EXCEPTION VALUES:             3,720,444                           3,785,729
 TOTAL TEST VALUES (4):               124,996,548                         126,912,576
 MARGIN OF ERROR PERCENT:               5.0000002
 MARGIN OF ERROR VALUE:                 6,345,629
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 120,566,947 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  124,996,548 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 133,258,205 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  136,431,155 (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