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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:08:15                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              165/Midland                                               VRSN:      W
                                                        165-901/Midland ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              667,926,846        0.9381           711,999,623              55           12,152         .005856002
      2           A              667,758,817        0.9789           682,152,229              57            6,802         .005224257
      3           A              668,001,309        0.9612           694,965,989              55            4,519         .005638709
      4           A              667,657,977        0.9726           686,467,178              56            2,344         .004632752
      5           F1             181,514,335        1.0210           177,780,935              27            1,560         .057868184
      6           F1             181,984,130        1.0610           171,521,329               7              377         .007062318
      7           F1             181,798,322        1.0200           178,233,649              11              110         .005347729
      8           F1             180,089,510        1.0340           174,167,805               8               28         .003223648
      9           G1             311,756,792        1.0334           301,680,658               7              524         .001218618
     10           G1             317,387,476        0.9899           320,625,797               7              119         .055460456
     11           G1             324,425,881        1.0966           295,847,055               5               15         .055719126
     12           L1             129,092,349        1.0211           126,424,786               7            2,056         .020367595
     13           L1             129,313,322        0.9800           131,952,369              10              364         .004597269
     14           L1             129,737,353        1.0133           128,034,494               8              100         .024029834
     15           L1             128,136,769        1.0469           122,396,379               7               24         .004928291
  RANDOM TOTALS:               4,866,581,188                       4,904,250,275             327           31,094
  CATG D1 EXCEPTION VALUES:        8,169,880                           9,896,710
  CATG G1 EXCEPTION VALUES:      291,285,979                         284,440,839
 TOTAL TEST VALUES (4):        5,166,037,047                       5,198,587,824
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          259,929,391
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          4,938,658,433 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           5,166,037,047 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          5,458,517,215 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           5,760,812,863 (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