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2006 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 374,199,829 0.9304 402,192,422 52 3,422 .055772447
A 374,313,298 0.9682 386,607,414 57 1,540 .007867517
A 374,365,976 0.9696 386,103,523 52 921 .002872071
A 373,893,617 0.9704 385,298,451 45 444 .009035419
C 53,165,921 0.9491 56,017,196 57 4,296 .053864338
C 53,535,348 0.9906 54,043,356 54 1,447 .016869127
C 53,001,053 0.9855 53,780,876 41 558 .030249657
C 52,900,641 0.9896 53,456,590 38 136 .000732098
D3 119,257,710 0.8279 144,048,448 11 7,166 .057780797
F1 29,160,541 0.8933 32,643,615 7 285 .058149359
F1 29,480,793 0.9027 32,658,461 7 108 .028694194
F1 30,917,743 0.9067 34,099,198 6 43 .038176463
F1 31,675,308 0.8881 35,666,375 4 9 .038798404
Random Totals: 1,949,867,778   2,056,615,925 431 20,375  
Catg D1 Exception Values: 33,374,889   39,510,434      
Total Test Values (4): 1,983,242,667   2,096,126,359      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 104,806,318

Confidence Interval Values (5)

Local Test Value: 1,983,242,667 (Outside Confidence Interval)
State Lower Limit: 1,991,320,041 (State Test Value minus Margin of Error Percent)
State Upper Limit: 2,200,932,677 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,908,535,806 (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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