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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:06:34                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              069/Edwards                                               VRSN:      W
                                                        069-901/Rocksprings ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                3,486,180        0.9269             3,761,118               7              189         .014316882
      2           A                3,487,919        0.8730             3,995,325               7              102         .022771598
      3           A                3,524,292        0.8599             4,098,491               6               68         .040751423
      4           A                3,436,436        0.9636             3,566,247               6               42         .011602252
      5           D3              41,045,723        0.9142            44,897,969              56                0         .104539639
      6           G1              27,877,877        0.8965            31,096,349               9              157         .093782837
      7           G1              27,815,901        0.9820            28,325,765               9               60         .067956752
      8           G1              27,996,456        0.9740            28,743,795               7               23         .005697213
      9           G1              27,261,167        0.9968            27,348,683               4                8         .001868516
  RANDOM TOTALS:                 165,931,951                         175,833,742             111              649
  CATG J  EXCEPTION VALUES:       13,173,808                          13,111,742
  CATG D1 EXCEPTION VALUES:       33,682,500                          33,620,725
 TOTAL TEST VALUES (4):          212,788,259                         222,566,209
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           11,128,310
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            211,437,899 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             212,788,259 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            233,694,519 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             223,218,608 (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