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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:18:18                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              188/Potter                                                VRSN:      P
                                                        188-903/Highland Park ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                6,307,455        0.9892             6,376,319                7              257
           2           A                6,352,699        0.9649             6,583,790                7              114
           3           A                6,352,879        1.0134             6,268,876                7               51
           4           A                6,202,647        0.9927             6,248,259                5               17
           5           F1              14,242,569        0.9736            14,628,768                7               68
           6           F1              14,548,831        0.9696            15,004,982                6               24
           7           F1              15,776,764        0.9807            16,087,248                4                9
           8           F1              11,056,195        0.9476            11,667,576                3                4
           9           L1              25,737,649        0.9740            26,424,691                7               95
          10           L1              27,585,479        0.9939            27,754,783                8               23
          11           L1              28,155,593        0.9855            28,569,856                4                8
  RANDOM TOTALS:                      162,318,760                         165,615,148               65              670
  CATG J  EXCEPTION VALUES:           268,855,477                         252,995,923
  CATG D1 EXCEPTION VALUES:             4,910,033                           6,312,573
  CATG L1 EXCEPTION VALUES:            16,470,992                          16,470,992
 TOTAL TEST VALUES (4):               452,555,262                         441,394,636
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                22,069,732
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 419,324,904 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  452,555,262 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 463,464,368 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  680,364,188 (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