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2006 Confidence Interval Detail
245/Willacy
245-901/Lasara ISD

Category Summary

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

Stratum
Variance
A 2,114,568 0.9494 2,227,268 12 128 .031782364
A 2,115,005 0.9437 2,241,184 11 74 .016506049
A 2,108,126 0.9998 2,108,548 10 47 .013062449
A 2,071,876 1.0270 2,017,406 8 23 .010372022
D3 4,427,609 0.9915 4,465,566 20 686 .005108439
G1 11,359,065 1.0829 10,489,487 13 15 .016462212
Random Totals: 24,196,249   23,549,459 74 973  
Catg J Exception Values: 253,390   247,465      
Catg D1 Exception Values: 8,411,869   7,957,637      
Catg G1 Exception Values: 3,239,294   4,032,965      
Total Test Values (4): 36,100,802   35,787,526      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,789,376

Confidence Interval Values (5)

State Lower Limit: 33,998,150 (State Test Value minus Margin of Error Percent)
Local Test Value: 36,100,802 (Within Confidence Interval)
State Upper Limit: 37,576,902 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 39,427,148 (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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