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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:04:41                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              147/Limestone                                             VRSN:      W
                                                        147-901/Coolidge ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                2,062,831        0.9132             2,258,904              12              136         .056869410
      2           A                1,982,423        0.9678             2,048,381              13               71         .014649477
      3           A                2,007,031        0.9953             2,016,509              17               51         .015083147
      4           A                1,998,118        1.1192             1,785,309              11               24         .013819363
      5           D3               7,698,525        0.9547             8,063,816              30            1,254         .014584017
  RANDOM TOTALS:                  15,748,928                          16,172,919              83            1,536
  CATG J  EXCEPTION VALUES:        3,825,863                           3,629,855
  CATG D1 EXCEPTION VALUES:        4,583,720                           4,392,731
 TOTAL TEST VALUES (4):           24,158,511                          24,195,505
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            1,209,775
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             22,985,730 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              24,158,511 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             25,405,280 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              24,807,495 (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