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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:49:28                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              085/Garza                                                 VRSN:      W
                                                        085-902/Post ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                8,705,322        0.8260            10,539,131               8              493         .041075387
      2           A                8,672,413        0.9110             9,519,663               7              260         .018334315
      3           A                8,734,336        0.9568             9,128,696               7              163         .021585288
      4           A                8,616,181        1.1056             7,793,217               7               93         .003772636
      5           D3              18,533,470        0.8930            20,754,166              10            2,723         .188641415
      6           G1              70,706,056        1.0255            68,947,885               7              142         .023300947
      7           G1              71,353,839        1.0439            68,353,136               5               19         .027228684
      8           G1              74,304,562        1.0325            71,965,677               3                6         .000530419
  RANDOM TOTALS:                 269,626,179                         267,001,571              54            3,899
  CATG J  EXCEPTION VALUES:       14,050,081                          13,757,145
  CATG D1 EXCEPTION VALUES:       18,383,300                          24,630,571
  CATG G1 EXCEPTION VALUES:       59,148,471                          58,041,029
 TOTAL TEST VALUES (4):          361,208,031                         363,430,316
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:           18,171,516
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            345,258,800 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             361,208,031 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            381,601,832 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             422,032,385 (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