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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:40:32                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              039/Clay                                                  VRSN:      W
                                                        039-905/Midway ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                1,297,406        0.8627             1,503,890               7               56         .043080923
      2           A                1,234,370        0.9685             1,274,517              10               26         .007768260
      3           A                1,275,274        1.0275             1,241,143               7               18         .030128909
      4           A                1,253,307        1.0251             1,222,619               5               11         .004389580
      5           D3              17,282,440        1.0090            17,128,285              20            2,266         .000512444
      6           G1               5,243,460        1.1164             4,696,757               7               96         .057880935
      7           G1               5,208,600        1.0104             5,154,988               6               36         .002555210
      8           G1               5,426,320        0.9513             5,704,110               5               18         .002503460
      9           G1               4,924,070        0.9777             5,036,381               3                5         .022970152
  RANDOM TOTALS:                  43,145,247                          42,962,690              70            2,532
  CATG J  EXCEPTION VALUES:        1,860,336                           1,768,175
  CATG D1 EXCEPTION VALUES:       12,900,900                          10,451,245
 TOTAL TEST VALUES (4):           57,906,483                          55,182,110
 MARGIN OF ERROR PERCENT:          5.0000009
 MARGIN OF ERROR VALUE:            2,759,106
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             52,423,004 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              57,906,483 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             57,941,216 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              59,287,630 (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