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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:24:42                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              246/Williamson                                            VRSN:      W
                                                        246-902/Florence ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               23,624,486        1.0526            22,443,935               7              415         .013123526
      2           A               23,595,812        0.9588            24,609,733               8              263         .022003332
      3           A               23,532,028        1.0033            23,454,628               7              171         .010573931
      4           A               23,520,132        0.9613            24,467,005               8              102         .034456438
      5           D3              69,888,277        0.9388            74,444,266              20            1,757         .039028248
  RANDOM TOTALS:                 164,160,735                         169,419,567              50            2,708
  CATG D1 EXCEPTION VALUES:        4,515,704                           4,400,213
 TOTAL TEST VALUES (4):          168,676,439                         173,819,780
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            8,690,989
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            165,128,791 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             168,676,439 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            182,510,769 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             189,879,181 (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