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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:36:09                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              208/Scurry                                                VRSN:      W
                                                        208-902/Snyder ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               45,486,631        0.9618            47,293,232              17            1,905         .016699066
      2           A               45,476,558        1.0525            43,208,131               8              907         .016709886
      3           A               45,436,371        1.0062            45,156,401              13              540         .004611481
      4           A               45,430,866        0.9045            50,227,602              14              332         .013016198
      5           D3              37,085,064        0.9953            37,260,187              10            3,755         .008375464
      6           F1              10,434,137        0.9518            10,962,531              11              220         .004799501
      7           F1              10,588,787        1.0153            10,429,220               7               62         .004862623
      8           F1              10,510,324        1.0797             9,734,486               6               23         .001001142
      9           F1              10,070,856        1.0055            10,015,769               4                8         .004951131
     10           G1              46,903,739        1.0807            43,401,258               4               10         .001760999
  RANDOM TOTALS:                 307,423,333                         307,688,817              94            7,762
  CATG D1 EXCEPTION VALUES:       24,502,707                          28,923,480
  CATG G1 EXCEPTION VALUES:      845,763,125                         823,587,183
 TOTAL TEST VALUES (4):        1,177,689,165                       1,160,199,480
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           58,009,974
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,102,189,506 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,177,689,165 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,218,209,454 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,506,469,291 (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