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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:25:27                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              248/Winkler                                               VRSN:      W
                                                        248-902/Wink-Loving ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                7,924,620        0.8911             8,893,076              12              431         .027228712
      2           G1             141,348,250        0.9945           142,129,965               7              187         .004898080
      3           G1             144,970,720        1.0256           141,352,106               6               49         .003131368
      4           G1             150,852,050        1.0039           150,266,013               5               18         .000603037
      5           G1             128,089,210        1.0450           122,573,407               3                6         .006194322
  RANDOM TOTALS:                 573,184,850                         565,214,567              33              691
  CATG J  EXCEPTION VALUES:       21,799,304                          21,519,060
  CATG D1 EXCEPTION VALUES:        1,475,460                           4,024,822
 TOTAL TEST VALUES (4):          596,459,614                         590,758,449
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           29,537,922
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            561,220,527 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             596,459,614 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            620,296,371 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             664,443,319 (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