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DATE: 01/27/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:03:21                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              227/Travis                                                VRSN:      W
                                                        246-914/Coupland ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                  566,376        1.1160               507,505               3                4         .009188086
  RANDOM TOTALS:                     566,376                             507,505               3                4
  CATG J  EXCEPTION VALUES:          198,823                             219,038
  CATG D1 EXCEPTION VALUES:          388,771                             360,316
  CATG D3 EXCEPTION VALUES:        2,651,917                           2,462,943
 TOTAL TEST VALUES (4):            3,805,887                           3,549,802
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:              177,490
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:              3,372,312 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:              3,727,292 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:               3,805,887 (OUTSIDE CONFIDENCE INTERVAL)
 VALUE ASSIGNED (6):               2,977,137 (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