Holiday Hours
Quick Start for:

2009 Confidence Interval Detail
225/Titus
225-906/Chapel Hill ISD

Category Summary

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

Stratum
Variance
A 15,706,440 0.9444 16,631,131 7 210 .006934945
A 14,319,836 0.9907 14,454,261 8 109 .005385911
A 15,706,251 1.0263 15,303,762 7 78 .010200701
A 15,376,361 1.0802 14,234,735 8 51 .001466454
D3 47,244,098 0.9978 47,348,264 11 1,540 .018178432
Random Totals: 108,352,986   107,972,153 41 1,988  
Catg D1 Exception Values: 3,093,030   2,632,859      
Total Test Values (4): 111,446,016   110,605,012      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 5,530,251

Confidence Interval Values (5)

State Lower Limit: 105,074,761 (State Test Value minus Margin of Error Percent)
Local Test Value: 111,446,016 (Within Confidence Interval)
State Upper Limit: 116,135,263 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 109,791,745 (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