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2009 Confidence Interval Detail
221/Taylor
221-905/Trent ISD

Category Summary

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

Stratum
Variance
A 1,349,336 0.9727 1,387,207 7 71 .002809806
A 1,060,817 0.9237 1,148,443 7 29 .006055136
A 1,573,510 0.9663 1,628,387 6 28 .000526459
A 1,334,610 0.9812 1,360,181 5 14 .010748147
D3 3,277,962 0.8836 3,709,780 16 370 .158088046
Random Totals: 8,596,235   9,233,998 41 512  
Catg J Exception Values: 4,076,460   4,164,588      
Catg D1 Exception Values: 2,198,617   2,166,725      
Total Test Values (4): 14,871,312   15,565,311      

Margin of Error

Margin of Error Percent: 5.0000029
Margin of Error Value: 778,266

Confidence Interval Values (5)

State Lower Limit: 14,787,045 (State Test Value minus Margin of Error Percent)
Local Test Value: 14,871,312 (Within Confidence Interval)
State Upper Limit: 16,343,577 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 79,209,933 (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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