Holiday Hours
Quick Start for:

2009 Confidence Interval Detail
246/Williamson
246-912/Thrall ISD

Category Summary

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

Stratum
Variance
A 13,925,060 0.9726 14,317,356 10 233 .024434352
A 13,764,992 0.9293 14,812,216 8 138 .037970324
A 9,267,556 1.0288 9,008,122 8 67 .006729114
A 13,584,993 0.9603 14,146,614 8 59 .002521426
D3 71,035,097 1.0175 69,813,363 27 2,424 .030177571
Random Totals: 121,577,698   122,097,671 61 2,921  
Catg J Exception Values: 9,170,625   9,255,219      
Catg D1 Exception Values: 20,730,494   15,813,971      
Total Test Values (4): 151,478,817   147,166,861      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,358,343

Confidence Interval Values (5)

State Lower Limit: 139,808,518 (State Test Value minus Margin of Error Percent)
Local Test Value: 151,478,817 (Within Confidence Interval)
State Upper Limit: 154,525,204 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 157,211,313 (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