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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:43:49                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              057/Dallas                                                VRSN:      W
                                                        057-916/Richardson ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A            2,183,641,685        1.0007         2,182,114,205              48           17,290         .001073171
      2           A            2,183,724,771        1.0058         2,171,132,204              47           12,547         .002003319
      3           A            2,183,722,167        1.0065         2,169,619,639              49            9,542         .000805539
      4           A            2,183,802,745        0.9950         2,194,776,628              50            5,997         .001665307
      5           B              282,600,661        1.0024           281,924,043              36              581         .039649802
      6           B              280,113,606        0.9442           296,667,662               6               51         .004708819
      7           B              288,585,964        0.8957           322,190,425               6               30         .023526368
      8           B              268,458,361        0.9654           278,079,926               5               14         .001118888
      9           F1             914,761,923        1.0061           909,215,707              19              779         .005943814
     10           F1             918,608,289        0.9911           926,857,319              15              223         .007425971
     11           F1             909,845,715        0.9329           975,287,507              15               87         .012139954
     12           F1             910,842,858        0.9144           996,109,862               9               20         .004861456
     13           L1             312,101,973        0.9851           316,822,630               9            2,118         .071993910
     14           L1             312,259,085        1.0297           303,252,486               7              303         .015469255
     15           L1             315,188,471        1.0028           314,308,407               7               92         .000521990
     16           L1             308,681,897        0.9393           328,629,721               7               24         .006052532
  RANDOM TOTALS:              14,756,940,171                      14,966,988,371             335           49,698
  CATG D1 EXCEPTION VALUES:            8,647                               9,864
 TOTAL TEST VALUES (4):       14,756,948,818                      14,966,998,235
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          748,349,912
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:         14,218,648,323 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:          14,756,948,818 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:         15,715,348,147 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):          16,061,000,107 (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