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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:11:20                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              093/Grimes                                                VRSN:      W
                                                        093-903/Iola ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                3,131,654        0.8878             3,527,432               8              107         .021881209
      2           A                3,179,495        0.7994             3,977,352               9               61         .025532274
      3           A                3,103,222        0.8676             3,576,789               5               36         .007972805
      4           A                3,101,724        0.9746             3,182,561               6               25         .005203731
      5           D3              45,482,630        1.0662            42,658,629              14            2,647         .050095095
      6           G1               8,884,709        1.0005             8,880,269               8               33         .004254155
  RANDOM TOTALS:                  66,883,434                          65,803,032              50            2,909
  CATG J  EXCEPTION VALUES:        5,176,700                           5,155,107
  CATG D1 EXCEPTION VALUES:        4,482,570                           4,505,024
 TOTAL TEST VALUES (4):           76,542,704                          75,463,163
 MARGIN OF ERROR PERCENT:          6.8615239
 MARGIN OF ERROR VALUE:            5,177,923
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             70,285,240 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              76,542,704 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             80,641,086 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              84,657,222 (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