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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:56:29                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              016/Blanco                                                VRSN:      W
                                                        016-901/Johnson City ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               10,207,946        0.8443            12,090,425               7              193         .065213329
      2           A               10,146,835        0.9930            10,218,364               7              121         .021348072
      3           A               10,212,492        0.9352            10,920,115               8               85         .021312610
      4           A               10,014,097        1.0008            10,006,092               6               56         .000234883
      5           D3             227,600,000        0.8794           258,812,827              21            5,702         .025503326
      6           F1               6,300,738        0.9616             6,552,348               7               66         .020539521
      7           F1               6,431,639        1.0401             6,183,674               7               34         .003204762
      8           F1               6,548,950        0.9680             6,765,444               6               18         .004173372
      9           F1               5,856,546        1.0001             5,855,960               3                6         .009140363
  RANDOM TOTALS:                 293,319,243                         327,405,249              72            6,281
  CATG J  EXCEPTION VALUES:       27,689,675                          27,710,344
  CATG D1 EXCEPTION VALUES:       22,295,120                          23,352,374
 TOTAL TEST VALUES (4):          343,304,038                         378,467,967
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           18,923,398
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:             343,304,038 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:            359,544,569 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            397,391,365 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             344,532,700 (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