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2009 Confidence Interval Detail
193/Real
193-902/Leakey ISD

Category Summary

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

Stratum
Variance
A 30,814,273 0.5095 60,479,437 17 1,003 .148506769
A 32,224,731 0.7622 42,278,576 16 478 .087202670
A 31,225,627 0.6514 47,936,179 17 260 .134498781
A 36,693,240 0.8663 42,356,274 15 150 .027056822
D3 38,564,180 0.7282 52,958,226 22 2,367 .454833872
Random Totals: 169,522,051   246,008,692 87 4,258  
Catg D1 Exception Values: 13,582,145   15,649,780      
Total Test Values (4): 183,104,196   261,658,472      

Margin of Error

Margin of Error Percent: 8.2466778
Margin of Error Value: 21,578,131

Confidence Interval Values (5)

Local Test Value: 183,104,196 (Outside Confidence Interval)
State Lower Limit: 240,080,341 (State Test Value minus Margin of Error Percent)
State Upper Limit: 283,236,603 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 274,096,678 (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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