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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:25:30                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              249/Wise                                                  VRSN:      W
                                                        249-901/Alvord ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                9,641,727        1.0644             9,058,368               8              177         .067113659
      2           A                9,622,883        1.0031             9,593,144              10              113         .007459694
      3           A                9,591,863        1.0858             8,833,913               9               85         .030268136
      4           A                9,600,399        1.0547             9,102,493              10               53         .027822825
      5           D3              68,764,480        0.9908            69,402,987              23            2,263         .015681061
      6           G1               4,558,906        0.9981             4,567,584               6               72         .000187572
      7           G1               4,483,750        1.0380             4,319,605               6               27         .001151351
      8           G1               4,390,584        0.9913             4,429,117               5               16         .001109912
      9           G1               4,424,291        1.0741             4,119,068               3                5         .009759685
  RANDOM TOTALS:                 125,078,883                         123,426,279              80            2,811
  CATG J  EXCEPTION VALUES:        9,496,117                           9,678,138
  CATG D1 EXCEPTION VALUES:        3,182,850                           2,948,846
 TOTAL TEST VALUES (4):          137,757,850                         136,053,263
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            6,802,663
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            129,250,600 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             137,757,850 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            142,855,926 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             146,952,365 (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