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DATE: 01/26/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:20:25                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              003/Angelina                                              VRSN:      W
                                                        003-906/Zavalla ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               45,086,720        0.9538            47,270,623              15            1,601         .060556892
      2           C                3,890,040        0.8184             4,753,226              15            1,976         .015753163
      3           D3              13,939,810        0.9832            14,178,000              10            1,401         .003672230
  RANDOM TOTALS:                  62,916,570                          66,201,849              40            4,978
  CATG J  EXCEPTION VALUES:        2,260,229                           2,381,456
  CATG D1 EXCEPTION VALUES:       13,051,820                          13,074,730
 TOTAL TEST VALUES (4):           78,228,619                          81,658,035
 MARGIN OF ERROR PERCENT:          7.4531747
 MARGIN OF ERROR VALUE:            6,086,116
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             75,571,919 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              78,228,619 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             87,744,151 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              70,585,235 (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