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2006 Confidence Interval Detail
243/Wichita
243-905/Wichita Falls ISD

Category Summary

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

Stratum
Variance
A 538,983,854 0.9640 559,111,882 56 9,690 .011198017
A 538,999,772 0.9641 559,070,399 56 5,719 .005381282
A 538,736,527 0.9745 552,833,789 56 3,897 .002351559
A 538,726,707 0.9855 546,653,178 57 2,059 .001289338
F1 172,441,529 0.9218 187,070,437 21 1,003 .016765576
F1 172,292,265 0.9615 179,191,123 10 215 .023913303
F1 174,684,456 0.9855 177,254,648 8 67 .000321652
F1 168,632,943 0.9873 170,802,130 8 18 .000469010
L1 118,896,358 1.0152 117,116,192 7 1,282 .004495605
L1 118,615,002 1.0037 118,177,744 7 325 .004111391
L1 120,186,419 0.9871 121,757,085 7 97 .001481433
L1 117,196,998 1.0158 115,374,087 7 26 .000736286
Random Totals: 3,318,392,830   3,404,412,694 300 24,398  
Catg D1 Exception Values: 1,824,479   1,669,463      
Total Test Values (4): 3,320,217,309   3,406,082,157      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 170,304,108

Confidence Interval Values (5)

State Lower Limit: 3,235,778,049 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,320,217,309 (Within Confidence Interval)
State Upper Limit: 3,576,386,265 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,581,469,819 (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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