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2009 Confidence Interval Detail
177/Nolan
177-905/Highland ISD

Category Summary

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

Stratum
Variance
D3 11,635,800 1.1718 9,929,852 27 846 .251923534
G1 4,766,280 0.9514 5,009,754 12 13 .018146317
Random Totals: 16,402,080   14,939,606 39 859  
Catg J Exception Values: 4,382,752   4,572,872      
Catg D1 Exception Values: 8,801,170   10,077,292      
Catg G1 Exception Values: 29,465,134   28,137,140      
Total Test Values (4): 59,051,136   57,726,910      

Margin of Error

Margin of Error Percent: 5.0000009
Margin of Error Value: 2,886,346

Confidence Interval Values (5)

State Lower Limit: 54,840,564 (State Test Value minus Margin of Error Percent)
Local Test Value: 59,051,136 (Within Confidence Interval)
State Upper Limit: 60,613,256 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 270,871,652 (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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