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DATE: 01/30/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 08:10:17                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              101/Harris                                                VRSN:      W
                                                        101-907/Cypress-Fairbanks ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A            3,937,441,605        0.9871         3,988,898,394              61           35,106         .003442023
      2           A            3,930,524,369        0.9921         3,961,822,769              62           25,831         .004254573
      3           A            3,928,546,039        1.0099         3,890,034,696              60           20,057         .006054304
      4           A            3,923,836,194        1.0026         3,913,660,676              63           12,172         .004908360
      5           B              266,028,956        0.9610           276,825,136               6               43         .014504761
      6           B              266,517,417        1.0201           261,265,971               6               23         .003468334
      7           B              260,909,865        1.0187           256,120,413               5               14         .002863015
      8           B              248,169,990        0.9416           263,562,011               6               10         .043724987
      9           C              122,667,264        0.5490           223,437,639               7            3,370         .198969295
     10           C              120,354,148        0.7329           164,216,330              10            1,136         .180758665
     11           C              121,656,280        0.8426           144,382,008              14              385         .146751580
     12           C              121,127,231        0.7585           159,693,119              12              159         .045014249
     13           D3             401,271,041        0.6189           648,361,676              19            1,107         .402940324
     14           F1             957,708,654        0.8143         1,176,112,801              26            1,375         .044366576
     15           F1             957,475,779        0.8156         1,173,952,647               9              400         .034120625
     16           F1             960,411,404        0.8753         1,097,236,838               7              164         .027215450
     17           F1             951,545,800        0.9035         1,053,177,421              10               61         .031901957
     18           L1             588,842,775        0.8344           705,708,024               8            3,680         .005251538
     19           L1             589,663,348        0.9511           619,980,389               8              557         .018989799
     20           L1             592,867,644        0.8850           669,906,942               7              175         .024413436
     21           L1             582,436,669        0.9770           596,148,075               6               53         .001431825
  RANDOM TOTALS:              23,830,002,472                      25,244,503,975             412          105,878
  CATG D1 EXCEPTION VALUES:        6,751,717                           6,655,932
 TOTAL TEST VALUES (4):       23,836,754,189                      25,251,159,907
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:        1,262,557,995
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:          23,836,754,189 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:         23,988,601,912 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:         26,513,717,902 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):          24,859,769,719 (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