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2011 Confidence Interval Detail
212/Smith
212-905/Tyler ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 920,356,529 0.9461 972,789,905 100 12,173 .026005794
A 931,620,114 0.9554 975,110,021 100 7,009 .022593793
A 925,131,449 0.9787 945,265,606 100 4,510 .008935010
A 957,498,572 0.9985 958,936,977 100 2,238 .007590270
B 97,950,100 0.8992 108,930,271 14 815 .038250785
B 97,174,652 0.9978 97,388,908 11 78 .002172940
B 89,807,090 0.9958 90,185,871 8 15 .000794432
D3 270,133,564 1.0389 260,018,831 27 7,585 .066312656
F1 416,481,317 0.9184 453,485,755 18 1,388 .033836305
F1 423,932,647 0.9878 429,168,503 11 390 .027081518
F1 408,274,427 0.8828 462,476,696 10 142 .031678311
F1 447,726,213 0.9789 457,376,865 9 50 .026104152
L1 177,363,835 1.0951 161,961,314 10 1,323 .051255935
L1 192,400,743 0.9921 193,932,812 10 264 .004522997
L1 187,206,597 0.9427 198,585,549 9 71 .034986868
L1 158,949,250 0.9771 162,674,496 5 11 .010898878
Random Totals: 6,702,007,099   6,928,288,380 542 38,062  
Catg D1 Exception Values: 10,340,209   7,950,426      
Catg B Exception Values: 104,052,150   107,522,186      
Total Test Values (4): 6,816,399,458   7,043,760,992      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 352,188,050

Confidence Interval Values (5)

State Lower Limit: 6,691,572,942 (State Test Value minus Margin of Error Percent)
Local Test Value: 6,816,399,458 (Within Confidence Interval)
State Upper Limit: 7,395,949,042 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 7,108,158,865 (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
(6) Includes local value of unstudied property categories and sub-categories

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