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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:20:24                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              210/Shelby                                                VRSN:      P
                                                        210-904/Tenaha ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                3,625,522        0.8886             4,080,038                8              166
           2           A                3,620,919        0.9327             3,882,190                7               90
           3           A                3,581,096        0.9584             3,736,536               10               63
           4           A                3,588,999        1.0425             3,442,685                8               39
           5           D3              14,477,029        1.0265            14,103,292               11            1,420
           6           L1                 598,808        0.9740               614,793                6               25
           7           L1                 598,345        0.9105               657,161                4                7
           8           L1                 615,624        1.0075               611,041                2                3
  RANDOM TOTALS:                       30,706,342                          31,127,736               56            1,813
  CATG J  EXCEPTION VALUES:             6,021,822                           6,597,575
  CATG D1 EXCEPTION VALUES:             6,953,810                           6,170,024
  CATG L1 EXCEPTION VALUES:             1,048,020                           1,047,467
 TOTAL TEST VALUES (4):                44,729,994                          44,942,802
 MARGIN OF ERROR PERCENT:               5.7592404
 MARGIN OF ERROR VALUE:                 2,588,364
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  42,354,438 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   44,729,994 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  47,531,166 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   54,506,217 (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