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2009 Confidence Interval Detail
107/Henderson
107-907/Trinidad ISD

Category Summary

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

Stratum
Variance
A 2,506,560 0.9845 2,546,023 15 109 .009345703
A 2,894,440 1.0287 2,813,687 15 74 .009856301
A 3,964,920 1.0914 3,632,875 16 70 .039761683
A 5,091,650 1.0704 4,756,773 13 56 .018171051
D3 2,152,620 0.8254 2,607,972 11 160 .081969296
G1 3,582,419 1.0128 3,537,144 18 34 .014792788
Random Totals: 20,192,609   19,894,474 88 503  
Catg J Exception Values: 11,899,780   11,795,755      
Catg D1 Exception Values: 627,510   581,608      
Total Test Values (4): 32,719,899   32,271,837      

Margin of Error

Margin of Error Percent: 5.0000005
Margin of Error Value: 1,613,592

Confidence Interval Values (5)

State Lower Limit: 30,658,245 (State Test Value minus Margin of Error Percent)
Local Test Value: 32,719,899 (Within Confidence Interval)
State Upper Limit: 33,885,429 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 38,960,646 (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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