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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:38:12                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              029/Calhoun                                               VRSN:      W
                                                        029-901/Calhoun County ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              130,049,985        0.9502           136,865,907              28            3,165         .045829311
      2           A              129,957,729        0.9843           132,030,610              25            1,753         .041561779
      3           A              130,108,734        0.9796           132,818,226              39            1,099         .012117611
      4           A              129,879,351        0.9487           136,902,447              19              581         .005475676
      5           D3              33,581,593        0.8465            39,671,108              11            5,258         .071030756
      6           F1              23,201,411        1.0507            22,081,861              10              354         .030746805
      7           F1              23,047,841        0.9348            24,655,371               9              122         .019492224
      8           F1              23,439,099        0.9137            25,652,948               9               47         .008066300
      9           F1              22,714,729        0.9331            24,343,295               4               12         .006210985
     10           G1              25,969,015        0.9442            27,503,723               6               53         .010540903
     11           G1              26,823,354        0.9813            27,334,509               5               15         .007229452
     12           G1              28,214,050        1.0242            27,547,403               4                7         .003422687
     13           G1              20,866,549        1.0090            20,680,425               2                3         .000623475
     14           L1              20,382,289        1.0468            19,471,044               8              393         .004957873
     15           L1              20,350,590        1.0368            19,628,270               6               57         .000983940
     16           L1              40,726,460        0.9169            44,417,559               5               15         .037355673
  RANDOM TOTALS:                 829,312,779                         861,604,706             190           12,934
  CATG J  EXCEPTION VALUES:       39,157,361                          38,502,197
  CATG D1 EXCEPTION VALUES:       26,900,406                          27,452,133
 TOTAL TEST VALUES (4):          895,370,546                         927,559,036
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           46,377,952
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            881,181,084 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             895,370,546 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            973,936,988 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           3,595,895,069 (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