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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:09:30                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              084/Galveston                                             VRSN:      W
                                                        084-902/Galveston ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              663,441,732        0.9515           697,258,783              51            9,746         .012378794
      2           A              663,275,743        0.9440           702,622,609              63            5,277         .009170845
      3           A              668,098,572        0.9745           685,580,885              63            3,166         .009298058
      4           A              658,559,894        0.9770           674,063,351              57            1,614         .011573177
      5           B               56,123,498        1.0278            54,605,466              15              644         .011195949
      6           B               56,261,802        1.0809            52,050,885               7              186         .037580224
      7           B               57,790,730        0.9347            61,828,105               5               19         .004676746
      8           B               53,919,332        0.9594            56,201,097               4                9         .012189115
      9           F1             105,969,342        0.8266           128,199,059              13              718         .135128250
     10           F1             106,083,080        0.8723           121,613,069              10              217         .017198806
     11           F1             106,016,282        0.8941           118,573,182               6               72         .010952506
     12           F1             105,678,062        0.8324           126,955,865               6               14         .103004398
     13           L1              49,511,914        1.1872            41,704,779               7              832         .085232652
     14           L1              49,585,569        1.0620            46,690,743               8              186         .022899448
     15           L1              50,944,857        1.0238            49,760,556               7               44         .032687908
     16           L1              47,576,047        0.9232            51,533,846               4               11         .008888649
  RANDOM TOTALS:               3,498,836,456                       3,669,242,280             326           22,755
  CATG D1 EXCEPTION VALUES:          438,800                             322,453
 TOTAL TEST VALUES (4):        3,499,275,256                       3,669,564,733
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          183,478,237
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          3,486,086,496 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           3,499,275,256 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          3,853,042,970 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           3,593,421,636 (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