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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:37:18                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              025/Brown                                                 VRSN:      W
                                                        025-901/Bangs ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               25,401,715        0.8278            30,685,812              22            1,022         .051889157
      2           A               25,363,784        0.8779            28,891,427              17              514         .026021854
      3           A               25,351,059        0.9072            27,944,289              20              308         .035105486
      4           A               25,353,527        0.9098            27,867,143              17              161         .036026355
      5           D3              44,173,671        1.1392            38,776,045              30            2,942         .220759330
  RANDOM TOTALS:                 145,643,756                         154,164,716             106            4,947
  CATG J  EXCEPTION VALUES:       12,199,339                          12,445,003
  CATG D1 EXCEPTION VALUES:        8,428,180                           7,986,903
 TOTAL TEST VALUES (4):          166,271,275                         174,596,622
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            8,729,831
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            165,866,791 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             166,271,275 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            183,326,453 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             163,622,202 (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