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2009 Confidence Interval Detail
163/Medina
163-903/Natalia ISD

Category Summary

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

Stratum
Variance
A 17,735,130 0.9496 18,676,422 7 481 .039652670
A 17,558,690 0.9579 18,330,400 7 251 .027506412
A 19,097,230 1.0060 18,983,330 7 150 .005129836
A 21,088,120 1.0777 19,567,709 6 89 .015328908
C 3,911,290 0.8400 4,656,298 7 197 .060353848
C 3,016,520 0.9654 3,124,632 7 100 .000210297
C 4,656,410 0.9946 4,681,691 7 125 .006028900
C 2,899,650 1.0576 2,741,727 6 60 .052210731
D3 54,576,940 0.8821 61,871,602 17 2,127 .049327625
Random Totals: 144,539,980   152,633,811 71 3,580  
Catg D1 Exception Values: 2,736,440   2,712,684      
Total Test Values (4): 147,276,420   155,346,495      

Margin of Error

Margin of Error Percent: 5.0839422
Margin of Error Value: 7,897,726

Confidence Interval Values (5)

Local Test Value: 147,276,420 (Outside Confidence Interval)
State Lower Limit: 147,448,769 (State Test Value minus Margin of Error Percent)
State Upper Limit: 163,244,221 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 138,400,189 (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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