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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:36:18                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              019/Bowie                                                 VRSN:      W
                                                        019-912/Pleasant Grove ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              115,073,279        0.9740           118,145,050              51            1,157         .009852941
      2           A              114,972,957        0.9526           120,693,845              50              800         .007802512
      3           A              115,021,984        0.9847           116,809,164              44              556         .009904239
      4           A              114,836,244        1.0420           110,207,528              17              284         .012754593
      5           F1              24,600,202        0.9397            26,178,783               8               48         .009160041
      6           F1              25,011,382        0.9782            25,568,781               4               12         .008312940
      7           F1              26,158,844        0.8733            29,954,018               3                4         .018855449
  RANDOM TOTALS:                 535,674,892                         547,557,169             177            2,861
  CATG D1 EXCEPTION VALUES:        3,648,395                           4,003,002
  CATG F1 EXCEPTION VALUES:       18,707,023                          23,458,688
 TOTAL TEST VALUES (4):          558,030,310                         575,018,859
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           28,750,943
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            546,267,916 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             558,030,310 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            603,769,802 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             625,149,955 (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