Quick Start for:

2011 Confidence Interval Detail
226/Tom Green
226-906/Wall ISD

Category Summary

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

Stratum
Variance
A 39,771,150 0.9890 40,213,498 10 359 .007277950
A 40,580,700 0.9967 40,715,060 10 231 .001060172
A 42,024,400 0.9952 42,227,090 10 174 .003624031
A 43,052,700 0.9701 44,379,652 10 109 .002407283
D3 65,601,120 1.0065 65,177,466 15 2,560 .004230333
Random Totals: 231,030,070   232,712,766 55 3,433  
Catg D1 Exception Values: 39,093,440   33,234,901      
Total Test Values (4): 270,123,510   265,947,667      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,297,383

Confidence Interval Values (5)

State Lower Limit: 252,650,284 (State Test Value minus Margin of Error Percent)
Local Test Value: 270,123,510 (Within Confidence Interval)
State Upper Limit: 279,245,050 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 288,471,751 (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