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2007 Confidence Interval Detail
207/Schleicher
207-901/Schleicher County ISD

Category Summary

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

Stratum
Variance
A 5,297,395 0.7982 6,636,676 8 322 .034256819
A 5,299,760 0.5265 10,066,021 7 171 .161361408
A 5,291,723 0.7718 6,856,340 8 105 .047552106
A 5,236,394 0.7538 6,946,662 8 55 .012661095
D3 16,617,330 0.8806 18,870,463 10 3,475 .032745645
G1 53,174,205 0.9677 54,949,060 15 330 .024536598
G1 53,009,277 1.0006 52,977,491 15 122 .014409562
G1 54,033,553 1.0220 52,870,404 15 57 .006248941
G1 51,502,186 1.0960 46,991,046 11 20 .042799196
Random Totals: 249,461,823   257,164,163 97 4,657  
Catg J Exception Values: 6,531,920   6,876,594      
Catg D1 Exception Values: 27,256,080   32,845,793      
Total Test Values (4): 283,249,823   296,886,550      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 14,844,328

Confidence Interval Values (5)

State Lower Limit: 282,042,222 (State Test Value minus Margin of Error Percent)
Local Test Value: 283,249,823 (Within Confidence Interval)
State Upper Limit: 311,730,878 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 355,939,612 (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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