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2007 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 158,039,061 1.0314 153,227,711 37 1,648 .041347824
A 157,928,242 1.0177 155,181,529 40 1,151 .018816507
A 158,074,366 1.0388 152,170,164 42 891 .019768912
A 157,833,719 1.0235 154,209,789 38 531 .016428962
D3 33,503,243 0.8992 37,258,945 15 1,048 .034572579
F1 20,796,507 0.8299 25,059,052 8 100 .086957562
F1 20,688,446 1.0279 20,126,905 6 29 .016134673
F1 23,002,454 0.9084 25,321,944 4 10 .009466749
Random Totals: 729,866,038   722,556,039 190 5,408  
Catg D1 Exception Values: 16,276,725   24,868,271      
Catg F1 Exception Values: 16,431,612   16,635,382      
Total Test Values (4): 762,574,375   764,059,692      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 38,202,985

Confidence Interval Values (5)

State Lower Limit: 725,856,707 (State Test Value minus Margin of Error Percent)
Local Test Value: 762,574,375 (Within Confidence Interval)
State Upper Limit: 802,262,677 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,038,045,593 (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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