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2008 Confidence Interval Detail
205/San Patricio
205-902/Gregory-Portland CISD

Category Summary

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

Stratum
Variance
A 155,596,777 0.9578 162,452,262 45 1,683 .032049337
A 164,476,858 1.0157 161,934,487 27 1,269 .015767274
A 168,729,555 1.0304 163,751,509 32 1,008 .008746148
A 173,005,507 1.0421 166,016,224 30 608 .017426896
B 55,862,607 0.9453 59,095,109 20 49 .006698858
F1 22,701,358 0.8997 25,232,142 10 108 .080089603
F1 21,150,321 0.9777 21,632,731 7 31 .004478596
F1 17,282,820 0.9755 17,716,884 4 10 .040021919
F1 16,408,516 0.9498 17,275,759 3 3 .007369830
Random Totals: 795,214,319   795,107,107 178 4,769  
Catg D1 Exception Values: 16,262,918   16,296,312      
Total Test Values (4): 811,477,237   811,403,419      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 40,570,171

Confidence Interval Values (5)

State Lower Limit: 770,833,248 (State Test Value minus Margin of Error Percent)
Local Test Value: 811,477,237 (Within Confidence Interval)
State Upper Limit: 851,973,590 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,088,247,561 (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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