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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:11:13                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              092/Gregg                                                 VRSN:      W
                                                        092-907/Spring Hill ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               59,177,225        0.9012            65,664,919              25              638         .012854847
      2           A               59,238,857        0.9649            61,393,779              39              438         .007973049
      3           A               59,226,528        0.9731            60,863,763              38              297         .003604778
      4           A               59,063,828        0.9841            60,018,116              23              182         .010468163
      5           B                4,549,520        0.9473             4,802,618               6               82         .010508504
      6           B                4,728,012        0.9444             5,006,366               6               67         .001226735
      7           B                4,405,170        0.9268             4,753,097               6               49         .014530502
      8           B                4,485,386        0.9500             4,721,459               6               26         .011964417
      9           G1               9,274,082        1.0686             8,678,722               6               55         .002655784
     10           G1               9,188,738        1.0798             8,509,667               5               20         .012624502
     11           G1               9,315,990        1.0516             8,858,872               5               13         .003330158
     12           G1               8,732,402        0.9905             8,816,155               4                7         .000063967
  RANDOM TOTALS:                 291,385,738                         302,087,533             169            1,874
  CATG D1 EXCEPTION VALUES:          296,480                             292,497
 TOTAL TEST VALUES (4):          291,682,218                         302,380,030
 MARGIN OF ERROR PERCENT:          5.0000002
 MARGIN OF ERROR VALUE:           15,119,002
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            287,261,028 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             291,682,218 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            317,499,032 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             311,741,175 (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