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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:12:10                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              178/Nueces                                                VRSN:      W
                                                        178-904/Corpus Christi ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A            1,255,042,692        0.9475         1,324,583,316              29           21,607         .013086232
      2           A            1,255,130,234        0.9423         1,331,985,816              40           13,772         .005644884
      3           A            1,254,869,859        0.9541         1,315,239,345              51            9,594         .005633140
      4           A            1,254,922,482        0.9655         1,299,764,352              54            4,911         .008953124
      5           B              115,535,625        0.9263           124,728,085               7              652         .003219772
      6           B              114,063,955        0.9824           116,107,446               6               40         .006786491
      7           B              117,179,066        1.0018           116,968,523               5               20         .004020167
      8           B              111,902,915        0.9797           114,221,614               4                8         .000913102
      9           F1             367,749,016        0.9907           371,201,187              13            1,965         .040564427
     10           F1             367,396,384        1.0009           367,066,025               8              440         .012960142
     11           F1             368,774,672        1.0487           351,649,349               7              130         .005905450
     12           F1             365,576,136        0.9785           373,608,724               7               37         .001339983
     13           L1             177,781,013        0.9916           179,287,024               7            2,237         .006680612
     14           L1             178,149,855        1.0303           172,910,662               7              396         .022098477
     15           L1             178,890,116        0.9624           185,879,173               7              117         .005242367
     16           L1             176,047,532        0.9937           177,163,663               6               32         .009390950
  RANDOM TOTALS:               7,659,011,552                       7,922,364,304             258           55,958
  CATG D1 EXCEPTION VALUES:        1,391,020                           1,337,311
 TOTAL TEST VALUES (4):        7,660,402,572                       7,923,701,615
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          396,185,081
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          7,527,516,534 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           7,660,402,572 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          8,319,886,696 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           7,970,821,195 (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