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2009 Confidence Interval Detail
221/Taylor
221-904/Merkel ISD

Category Summary

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

Stratum
Variance
A 17,043,898 0.9736 17,506,058 9 643 .002255280
A 17,165,451 0.9430 18,203,023 8 344 .001122394
A 17,329,655 0.9747 17,779,476 10 227 .000812798
A 17,359,660 0.9373 18,520,922 8 139 .002589113
D3 29,295,199 1.0078 29,068,465 20 1,889 .064380749
F1 6,274,021 0.9315 6,735,396 7 95 .072741299
F1 5,926,337 0.9836 6,025,149 7 28 .026582407
F1 5,161,714 0.9796 5,269,206 4 10 .014583454
L1 8,270,831 1.0077 8,207,632 6 63 .002270075
L1 10,363,749 1.0783 9,611,193 5 16 .002821795
L1 7,191,574 1.0666 6,742,522 2 3 .007264472
Random Totals: 141,382,089   143,669,042 86 3,457  
Catg J Exception Values: 14,986,717   15,269,200      
Catg D1 Exception Values: 9,432,980   9,220,498      
Catg F1 Exception Values: 4,042,427   3,956,142      
Catg L1 Exception Values: 21,505,158   22,257,112      
Total Test Values (4): 191,349,371   194,371,994      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 9,718,600

Confidence Interval Values (5)

State Lower Limit: 184,653,394 (State Test Value minus Margin of Error Percent)
Local Test Value: 191,349,371 (Within Confidence Interval)
State Upper Limit: 204,090,594 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 349,847,828 (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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