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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:24:35                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              245/Willacy                                               VRSN:      W
                                                        245-903/Raymondville ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               19,669,680        1.0050            19,571,821              11            1,064         .016733413
      2           A               19,655,812        1.0237            19,200,754              11              620         .018241847
      3           A               19,662,667        0.9993            19,676,441              10              427         .005743933
      4           A               19,619,840        0.9935            19,748,203              10              237         .007584948
      5           D3              14,792,300        1.0101            14,644,392              13            1,569         .021787732
      6           F1               5,924,594        0.9809             6,039,957               8              135         .015404754
      7           F1               5,947,356        0.9953             5,975,441               6               42         .001219419
      8           F1               6,359,807        0.9570             6,645,566               5               17         .009303032
      9           F1               5,251,116        0.9707             5,409,618               3                5         .002439039
     10           G1             157,680,553        1.0080           156,429,120              18               39         .002742596
     11           L1               4,108,500        1.0412             3,945,928               8              149         .065173488
     12           L1               4,269,087        1.0452             4,084,469               6               31         .002774591
     13           L1               4,076,105        1.0261             3,972,425               5                7         .001120278
  RANDOM TOTALS:                 287,017,417                         285,344,135             114            4,342
  CATG J  EXCEPTION VALUES:        9,699,011                           8,209,045
  CATG D1 EXCEPTION VALUES:       14,591,027                          16,800,900
  CATG L1 EXCEPTION VALUES:        5,181,449                           5,181,449
 TOTAL TEST VALUES (4):          316,488,904                         315,535,529
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           15,776,776
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            299,758,753 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             316,488,904 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            331,312,305 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             305,135,820 (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