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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:05:08                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              061/Denton                                                VRSN:      W
                                                        061-902/Lewisville ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A            3,118,057,275        0.9872         3,158,485,894              56           22,090         .000744907
      2           A            3,117,320,897        1.0002         3,116,697,557              56           16,106         .001580160
      3           A            3,117,545,697        0.9930         3,139,522,353              58           11,827         .001122600
      4           A            3,117,411,638        0.9988         3,121,157,026              55            6,512         .001121356
      5           B              267,353,413        0.9914           269,672,597              10              123         .034813378
      6           B              263,000,146        0.7846           335,202,837               5               23         .018141418
      7           B              262,204,806        0.8744           299,868,259               5               15         .020871873
      8           B              249,322,899        0.9226           270,239,431               7               10         .011258307
      9           C              122,410,687        1.0396           117,747,871              33            1,356         .006355999
     10           C              122,870,447        0.9920           123,861,338              19              402         .002157246
     11           C              122,225,195        1.0133           120,620,937               6              130         .000106018
     12           C              122,006,629        1.1092           109,995,158               6               49         .023096477
     13           D3             196,659,841        1.0125           194,231,942              11            1,600         .000848530
     14           F1             610,624,498        1.1254           542,584,413              11              706         .018977092
     15           F1             611,089,046        1.0161           601,406,403               8              236         .004587487
     16           F1             619,846,986        1.0312           601,092,888               7               86         .042775793
     17           F1             599,118,021        0.9994           599,477,708               8               28         .002574429
     18           L1             161,587,474        1.1180           144,532,624               9            1,116         .011821248
     19           L1             161,319,424        1.0421           154,802,249               7              211         .006840902
     20           L1             163,461,271        0.9734           167,928,160               7               65         .010023737
     21           L1             159,041,850        1.0271           154,845,536               5               21         .000491863
  RANDOM TOTALS:              17,284,478,140                      17,343,973,181             389           62,712
  CATG D1 EXCEPTION VALUES:        2,301,943                           2,139,058
 TOTAL TEST VALUES (4):       17,286,780,083                      17,346,112,239
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          867,305,612
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:         16,478,806,627 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:          17,286,780,083 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:         18,213,417,851 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):          17,884,017,406 (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