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2009 Confidence Interval Detail
220/Tarrant
220-916/Hurst-Euless-Bedford ISD

Category Summary

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

Stratum
Variance
A 1,122,237,512 0.9994 1,122,911,259 18 10,469 .007707479
A 1,085,542,741 0.9865 1,100,398,116 24 7,835 .003689833
A 1,183,599,688 0.9787 1,209,359,035 25 7,053 .002600988
A 1,246,085,811 0.9811 1,270,090,522 30 5,314 .002692418
B 238,798,811 0.7095 336,573,377 10 562 .239299373
B 232,787,451 0.9603 242,411,175 6 39 .000812848
B 312,736,453 0.9587 326,208,880 6 28 .000181194
B 149,996,158 0.9656 155,339,849 4 7 .003159303
F1 481,335,349 0.9174 524,673,369 8 683 .017600326
F1 463,041,963 0.8830 524,396,334 9 169 .040186747
F1 431,857,025 0.9360 461,385,710 6 62 .000718195
F1 438,192,695 0.8611 508,875,502 5 21 .009059316
L1 279,283,964 1.1188 249,628,141 7 729 .020789448
L1 272,487,345 1.0808 252,116,344 7 84 .014417008
L1 293,406,994 0.9862 297,512,669 6 16 .007298411
Random Totals: 8,231,389,960   8,581,880,282 171 33,071  
Catg D1 Exception Values: 13,655   10,195      
Catg L1 Exception Values: 279,742,355   280,344,922      
Total Test Values (4): 8,511,145,970   8,862,235,399      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 443,111,770

Confidence Interval Values (5)

State Lower Limit: 8,419,123,629 (State Test Value minus Margin of Error Percent)
Local Test Value: 8,511,145,970 (Within Confidence Interval)
State Upper Limit: 9,305,347,169 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 8,723,162,684 (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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