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DATE: 01/27/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:03:00                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              158/Matagorda                                             VRSN:      W
                                                        241-901/Boling ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                  776,398        1.0017               775,080               9               34         .008340562
      2           A                  810,211        0.9070               893,287              10               24         .030203732
      3           A                  755,253        0.8086               934,025               7               14         .009865136
      4           A                  752,456        0.8984               837,551               6                8         .007464874
      5           D3               2,762,430        0.9518             2,902,322              12              337         .024546229
  RANDOM TOTALS:                   5,856,748                           6,342,265              44              417
  CATG J  EXCEPTION VALUES:        1,966,050                           1,899,444
  CATG D1 EXCEPTION VALUES:        1,683,720                           1,680,464
 TOTAL TEST VALUES (4):            9,506,518                           9,922,173
 MARGIN OF ERROR PERCENT:          5.0000035
 MARGIN OF ERROR VALUE:              496,109
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:              9,426,064 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:               9,506,518 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             10,418,282 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              10,903,967 (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