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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:28:33                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              174/Nacogdoches                                           VRSN:      W
                                                        174-903/Garrison ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                7,240,460        0.9530             7,597,545               9              238         .020856917
      2           A                7,311,368        0.9451             7,736,079               7              133         .057425637
      3           A                7,085,955        0.9709             7,298,337               6               86         .024961987
      4           A                7,197,339        1.0170             7,077,029               7               49         .019974490
      5           D3              30,294,190        0.8554            35,415,233              14            1,899         .245310133
      6           G1              22,998,717        1.0272            22,389,717               9               65         .004882589
      7           G1              24,056,941        0.9536            25,227,497               7               22         .019326442
      8           G1              21,721,230        1.0820            20,075,074               5               11         .026274122
      9           G1              22,472,330        1.2130            18,526,241               3                5         .081511960
  RANDOM TOTALS:                 150,378,530                         151,342,752              67            2,508
  CATG J  EXCEPTION VALUES:        6,933,435                           7,348,367
  CATG D1 EXCEPTION VALUES:       11,194,960                           9,089,166
 TOTAL TEST VALUES (4):          168,506,925                         167,780,285
 MARGIN OF ERROR PERCENT:          6.4253032
 MARGIN OF ERROR VALUE:           10,780,392
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            156,999,893 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             168,506,925 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            178,560,677 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             178,951,412 (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