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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:37:57                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              028/Caldwell                                              VRSN:      W
                                                        028-902/Lockhart ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               87,004,655        0.9834            88,473,312               6            1,529         .031055814
      2           A               86,689,278        0.9365            92,567,302               9              953         .046372517
      3           A               86,853,764        0.9737            89,199,717              20              726         .005574881
      4           A               86,668,849        0.9750            88,891,127              21              500         .006553558
      5           D3             222,254,845        0.9283           239,421,356              53            7,059         .043988813
      6           F1              14,276,856        1.0071            14,176,205               7              203         .057306869
      7           F1              14,207,915        0.9105            15,604,519               8               85         .025532955
      8           F1              14,472,644        0.9278            15,598,883               6               38         .031004402
      9           F1              13,834,154        1.0273            13,466,518               5               14         .049903680
  RANDOM TOTALS:                 626,262,960                         657,398,939             135           11,107
  CATG J  EXCEPTION VALUES:       14,001,700                          13,782,037
  CATG D1 EXCEPTION VALUES:       13,429,185                          15,345,181
 TOTAL TEST VALUES (4):          653,693,845                         686,526,157
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           34,326,308
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            652,199,849 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             653,693,845 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            720,852,465 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             691,340,618 (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