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2009 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 528,019,944 0.9698 544,462,718 64 3,905 .006659416
A 560,164,952 0.9400 595,920,162 29 1,612 .005905011
A 548,960,014 0.9445 581,217,590 23 930 .014590551
A 678,788,865 0.9416 720,888,769 20 506 .002883868
C 71,120,858 1.0296 69,076,202 33 4,399 .069970820
C 94,362,575 0.9734 96,941,211 18 1,487 .004250678
C 74,291,480 1.1008 67,488,626 8 337 .041369806
C 85,341,240 0.9709 87,899,104 7 127 .029824085
D3 149,063,821 0.9737 153,090,090 29 7,139 .027637933
F1 41,369,805 0.8891 46,529,980 7 330 .103248206
F1 40,639,540 0.9932 40,917,781 7 107 .032644166
F1 77,627,060 0.9575 81,072,648 7 33 .002355609
Random Totals: 2,949,750,154   3,085,504,881 252 20,912  
Catg D1 Exception Values: 36,910,844   39,074,019      
Total Test Values (4): 2,986,660,998   3,124,578,900      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 156,228,945

Confidence Interval Values (5)

State Lower Limit: 2,968,349,955 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,986,660,998 (Within Confidence Interval)
State Upper Limit: 3,280,807,845 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,888,222,044 (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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