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2011 Confidence Interval Detail
219/Swisher
219-901/Happy ISD

Category Summary

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

Stratum
Variance
A 2,364,830 0.8933 2,647,297 10 97 .021117253
A 2,677,750 0.9635 2,779,190 10 54 .016989575
A 2,150,370 1.0193 2,109,654 10 26 .004340522
A 1,957,180 0.9779 2,001,411 10 17 .011190734
D3 4,827,790 1.0409 4,638,092 15 715 .032771445
Random Totals: 13,977,920   14,175,644 55 909  
Catg J Exception Values: 1,582,222   1,528,362      
Catg D1 Exception Values: 13,195,472   16,482,914      
Total Test Values (4): 28,755,614   32,186,920      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,609,346

Confidence Interval Values (5)

Local Test Value: 28,755,614 (Outside Confidence Interval)
State Lower Limit: 30,577,574 (State Test Value minus Margin of Error Percent)
State Upper Limit: 33,796,266 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 42,386,338 (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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