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2007 Confidence Interval Detail
150/Llano
150-901/Llano ISD

Category Summary

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

Stratum
Variance
A 475,136,388 1.0017 474,330,027 33 3,665 .027167980
A 475,205,429 1.0074 471,714,740 20 1,564 .023292340
A 475,484,036 0.9590 495,812,342 11 916 .042124013
A 474,333,831 0.9546 496,892,762 11 425 .045315641
C 65,934,573 0.6938 95,033,977 17 4,868 .072542360
C 64,537,232 0.8337 77,410,618 14 1,578 .073591042
C 65,740,071 0.8473 77,587,715 7 411 .234122843
C 64,705,933 0.7818 82,765,327 7 143 .029191988
D3 141,862,385 0.9999 141,876,573 56 7,206 .048307431
F1 34,401,406 0.8033 42,825,104 8 310 .122358268
F1 34,698,085 0.9142 37,954,589 7 111 .080369786
F1 68,371,927 1.0338 66,136,513 7 41 .039824159
Random Totals: 2,440,411,296   2,560,340,287 198 21,238  
Catg D1 Exception Values: 34,924,959   39,797,486      
Total Test Values (4): 2,475,336,255   2,600,137,773      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 130,006,889

Confidence Interval Values (5)

State Lower Limit: 2,470,130,884 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,475,336,255 (Within Confidence Interval)
State Upper Limit: 2,730,144,662 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,349,796,436 (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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