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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:14:38                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              187/Polk                                                  VRSN:      W
                                                        187-907/Livingston ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               97,213,719        0.8561           113,554,163              20            3,591         .123011365
      2           A               97,139,409        0.7340           132,342,519              15            1,686         .056457616
      3           A               97,194,483        0.8809           110,335,433              13            1,015         .084258466
      4           A               97,157,631        0.7309           132,928,760              11              542         .070305798
      5           C               35,877,015        0.9081            39,507,780              39           11,422         .122301714
      6           C               35,873,864        0.9831            36,490,554              35            3,906         .123264350
      7           C               35,902,308        0.7850            45,735,424              26            1,498         .148845836
      8           C               35,833,725        1.0361            34,585,199              19              431         .117763359
      9           D3              70,458,078        1.0332            68,194,036              36            4,208         .045612295
     10           F1              24,181,371        1.0675            22,652,338              14              295         .040173571
     11           F1              24,307,204        1.0188            23,858,661              12               89         .097419618
     12           F1              24,924,197        0.9209            27,065,042               9               29         .043447233
     13           F1              22,706,163        1.0271            22,107,062               5                8         .028537154
     14           L1              15,376,895        1.2605            12,199,044               7              508         .100467689
     15           L1              15,370,849        1.2114            12,688,500               7              110         .014772884
     16           L1              15,770,591        1.1604            13,590,651               6               28         .062298783
     17           L1              14,706,550        1.0149            14,490,639               3                4         .002251338
  RANDOM TOTALS:                 759,994,052                         862,325,805             277           29,370
  CATG J  EXCEPTION VALUES:       12,564,524                          12,516,943
  CATG D1 EXCEPTION VALUES:       38,528,003                          36,416,818
 TOTAL TEST VALUES (4):          811,086,579                         911,259,566
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           45,562,978
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:             811,086,579 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:            865,696,588 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            956,822,544 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             805,631,538 (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