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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:07:38                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              161/McLennan                                              VRSN:      W
                                                        161-920/China Spring ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               60,495,555        0.9323            64,888,507              17              682         .015225146
      2           A               60,494,346        0.9825            61,571,853              50              463         .003283569
      3           A               60,394,461        0.9690            62,326,585              28              332         .003320531
      4           A               60,326,287        0.9869            61,127,051              18              210         .002327847
      5           B                5,747,737        0.9344             6,151,260               8               32         .000734237
      6           B                5,385,887        0.9900             5,440,290               7               27         .000158902
      7           B                5,938,180        1.0091             5,884,630               8               28         .000912651
      8           D3              93,721,318        0.9631            97,312,136              25            2,041         .015593136
  RANDOM TOTALS:                 352,503,771                         364,702,312             161            3,815
  CATG D1 EXCEPTION VALUES:        3,270,810                           2,860,048
  CATG B  EXCEPTION VALUES:        4,122,168                           4,084,703
 TOTAL TEST VALUES (4):          359,896,749                         371,647,063
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           18,582,353
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            353,064,710 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             359,896,749 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            390,229,416 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             361,509,914 (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