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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:16:14                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              110/Hockley                                               VRSN:      W
                                                        110-907/Sundown ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                3,786,339        0.7661             4,942,356               7              195         .276221548
      2           A                3,753,411        0.5509             6,813,235               8               96         .050307618
      3           A                3,771,457        0.8371             4,505,384               8               65         .092029838
      4           A                3,710,222        0.7135             5,200,031               7               45         .014485159
      5           G1             828,655,798        0.9850           841,274,922              18               47         .003482948
  RANDOM TOTALS:                 843,677,227                         862,735,928              48              448
  CATG D1 EXCEPTION VALUES:        2,802,264                           2,530,883
 TOTAL TEST VALUES (4):          846,479,491                         865,266,811
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:           43,263,341
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            822,003,470 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             846,479,491 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            908,530,152 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             960,920,547 (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