Filing Deadline Extended
Quick Start for:

2010 Confidence Interval Detail
227/Travis
227-910/Del Valle ISD

Category Summary

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

Stratum
Variance
A 420,854,604 0.9088 463,088,253 57 4,828 .011679931
A 249,429,509 0.9264 269,246,016 49 2,143 .007419519
A 160,045,263 0.9607 166,592,342 41 1,131 .004967919
A 165,662,506 0.9736 170,154,587 10 733 .008421878
B 86,100,178 0.9449 91,120,942 9 45 .000096611
B 102,366,665 0.9591 106,732,004 4 8 .000161634
B 94,874,049 0.9776 97,047,922 4 4 .000083225
F1 159,542,875 0.9810 162,632,900 10 241 .001287581
F1 163,174,005 0.9785 166,759,331 8 53 .001469091
F1 107,173,920 0.9515 112,636,805 7 16 .001652196
F1 119,670,719 0.9712 123,219,439 5 8 .000827336
L1 114,895,738 1.0239 112,213,828 10 257 .013320162
L1 128,746,261 0.9483 135,765,328 8 50 .007453465
L1 148,367,635 0.9525 155,766,546 6 17 .007093086
L1 63,154,976 1.0074 62,691,062 3 3 .000559608
Random Totals: 2,284,058,903   2,395,667,305 231 9,537  
Catg J Exception Values: 10,399,761   14,409,524      
Catg D1 Exception Values: 8,969,258   9,332,282      
Total Test Values (4): 2,303,427,922   2,419,409,111      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 120,970,456

Confidence Interval Values (5)

State Lower Limit: 2,298,438,655 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,303,427,922 (Within Confidence Interval)
State Upper Limit: 2,540,379,567 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,913,381,313 (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

Required Plug-ins