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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:41:14                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              238/Ward                                                  VRSN:      W
                                                        238-902/Monahans-Wickett-Pyote IS
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    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               23,233,851        0.8815            26,357,176              11            1,333         .023213135
      2           A               23,224,672        0.8932            26,001,648              12              727         .032359857
      3           A               23,204,184        0.9814            23,643,962              12              465         .047281299
      4           A               23,181,157        0.8937            25,938,410              13              257         .027336626
      5           G1             179,576,710        0.9784           183,541,200               9              161         .017079982
      6           G1             177,870,292        1.0386           171,259,669               8               47         .021072377
      7           G1             180,481,530        1.0678           169,021,849               7               27         .021660507
      8           G1             172,271,640        1.0210           168,728,345               5               11         .003079576
  RANDOM TOTALS:                 803,044,036                         794,492,259              77            3,028
  CATG J  EXCEPTION VALUES:       39,935,489                          41,973,009
  CATG D1 EXCEPTION VALUES:          785,590                           1,072,513
 TOTAL TEST VALUES (4):          843,765,115                         837,537,781
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           41,876,889
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            795,660,892 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             843,765,115 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            879,414,670 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             977,564,596 (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