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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:12:50                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              101/Harris                                                VRSN:      W
                                                        101-905/Channelview ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              155,525,222        0.9475           164,142,715              49            2,175         .009725613
      2           A              153,786,161        0.9812           156,732,736              57            1,688         .005455474
      3           A              154,608,905        0.9887           156,375,953              58            1,431         .003046040
      4           A              154,473,202        0.9905           155,954,772              38            1,030         .006305455
      5           F1              28,242,443        1.0146            27,836,037               7              215         .098728516
      6           F1              28,706,356        0.9754            29,430,342              13               87         .017686572
      7           F1              28,336,369        0.8985            31,537,417               8               34         .013080448
      8           F1              27,592,877        0.8288            33,292,564               4               11         .014278026
      9           L1              25,235,204        0.9285            27,178,464               7              197         .071856585
     10           L1              24,850,735        0.9717            25,574,493               6               45         .016192872
     11           L1              30,347,441        0.9787            31,007,909               6               14         .002061230
  RANDOM TOTALS:                 811,704,915                         839,063,402             253            6,927
  CATG D1 EXCEPTION VALUES:          101,924                              74,799
  CATG L1 EXCEPTION VALUES:       10,008,370                          12,932,050
 TOTAL TEST VALUES (4):          821,815,209                         852,070,251
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:           42,603,513
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            809,466,738 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             821,815,209 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            894,673,764 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,798,054,022 (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