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2008 Confidence Interval Detail
221/Taylor
221-911/Jim Ned CISD

Category Summary

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

Stratum
Variance
A 22,624,079 0.8848 25,569,710 10 463 .043368326
A 23,472,900 0.9488 24,739,566 10 242 .015094407
A 24,261,910 1.0124 23,964,747 8 153 .003572684
A 29,811,362 1.0107 29,495,757 8 125 .003479992
D3 93,328,214 0.8782 106,272,164 23 3,470 .168861103
G1 6,803,258 1.0462 6,502,827 6 36 .016817486
G1 6,937,544 0.9954 6,969,604 5 13 .002936351
G1 7,478,316 1.0133 7,380,160 4 8 .001188346
G1 5,611,338 0.9953 5,637,836 2 3 .000032477
Random Totals: 220,328,921   236,532,371 76 4,513  
Catg J Exception Values: 24,280,478   23,993,203      
Catg D1 Exception Values: 13,633,476   12,241,777      
Total Test Values (4): 258,242,875   272,767,351      

Margin of Error

Margin of Error Percent: 6.8124282
Margin of Error Value: 18,582,080

Confidence Interval Values (5)

State Lower Limit: 254,185,271 (State Test Value minus Margin of Error Percent)
Local Test Value: 258,242,875 (Within Confidence Interval)
State Upper Limit: 291,349,431 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 462,432,567 (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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