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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:32:49                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              003/Angelina                                              VRSN:      W
                                                        003-905/Diboll ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               99,610,429        1.0189            97,762,714              19            2,040         .016861585
      2           D3               3,968,241        0.9380             4,230,534              10              918         .192932669
      3           F1              17,710,059        0.9820            18,034,683               9              132         .068743436
      4           L1              11,825,041        1.0267            11,517,523              10              225         .118655796
  RANDOM TOTALS:                 133,113,770                         131,545,454              48            3,315
  CATG J  EXCEPTION VALUES:       16,101,942                          16,653,353
  CATG D1 EXCEPTION VALUES:       13,535,280                          13,588,228
 TOTAL TEST VALUES (4):          162,750,992                         161,787,035
 MARGIN OF ERROR PERCENT:          5.0000002
 MARGIN OF ERROR VALUE:            8,089,352
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            153,697,683 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             162,750,992 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            169,876,387 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             257,509,381 (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