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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:23:55                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              153/Lynn                                                  VRSN:      W
                                                        153-903/O'Donnell ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                2,937,914        0.7417             3,961,054              14              172         .095744448
      2           A                2,931,175        0.7882             3,718,821              13               88         .045405390
      3           A                2,955,549        0.9214             3,207,672              13               51         .029463389
      4           A                2,856,431        0.9944             2,872,517              10               30         .007160672
      5           D3               4,849,570        0.9846             4,925,421              19            1,417         .008064030
      6           G1              23,865,760        1.0244            23,297,306              16               17         .011292422
  RANDOM TOTALS:                  40,396,399                          41,982,791              85            1,775
  CATG J  EXCEPTION VALUES:        1,344,720                           1,374,074
  CATG D1 EXCEPTION VALUES:       20,839,720                          16,706,888
 TOTAL TEST VALUES (4):           62,580,839                          60,063,753
 MARGIN OF ERROR PERCENT:          5.0000006
 MARGIN OF ERROR VALUE:            3,003,188
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             57,060,565 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              62,580,839 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             63,066,941 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              66,341,917 (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