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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:43:16                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              247/Wilson                                                VRSN:      W
                                                        247-903/La Vernia ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               75,210,226        0.9351            80,430,142              21            1,273         .015380636
      2           A               75,171,941        0.8907            84,396,476              21              612         .009990692
      3           A               75,304,389        0.9721            77,465,682              18              447         .001646836
      4           A               75,050,336        1.0084            74,425,165              54              333         .001789348
      5           C                6,561,146        0.8597             7,631,902               7              416         .054294194
      6           C                6,517,919        0.9695             6,722,970              10              252         .026737100
      7           C                6,559,061        0.9908             6,619,965               7              208         .002502911
      8           C                6,502,954        1.0333             6,293,384              12              145         .017880580
      9           D3              76,507,500        0.9779            78,236,527              10            2,707         .008634922
  RANDOM TOTALS:                 403,385,472                         422,222,213             160            6,393
  CATG D1 EXCEPTION VALUES:        5,822,810                           5,546,378
 TOTAL TEST VALUES (4):          409,208,282                         427,768,591
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:           21,388,430
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            406,380,161 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             409,208,282 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            449,157,021 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             404,479,819 (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