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2008 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 2,413,454 0.9423 2,561,237 15 135 .006765752
A 2,238,381 0.9608 2,329,705 15 74 .006897516
A 2,339,542 0.9261 2,526,230 16 48 .009891612
A 2,662,089 0.9683 2,749,240 11 28 .008990410
D3 6,593,915 0.9879 6,674,679 20 703 .010266241
G1 8,254,877 0.9289 8,886,723 15 25 .122875925
Random Totals: 24,502,258   25,727,814 92 1,013  
Catg J Exception Values: 283,457   286,542      
Catg D1 Exception Values: 8,206,143   8,080,126      
Catg G1 Exception Values: 7,926,930   7,960,829      
Total Test Values (4): 40,918,788   42,055,311      

Margin of Error

Margin of Error Percent: 5.0000011
Margin of Error Value: 2,102,766

Confidence Interval Values (5)

State Lower Limit: 39,952,545 (State Test Value minus Margin of Error Percent)
Local Test Value: 40,918,788 (Within Confidence Interval)
State Upper Limit: 44,158,077 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 45,719,824 (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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