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2011 Confidence Interval Detail
172/Morris
172-905/Pewitt ISD

Category Summary

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

Stratum
Variance
A 17,447,360 0.9731 17,929,668 10 457 .046825199
A 18,597,480 0.9270 20,062,006 10 287 .039536619
A 18,112,250 0.9116 19,868,638 11 190 .026018016
A 20,173,930 0.9459 21,327,762 10 131 .022618593
D3 59,330,710 0.7618 77,882,266 15 2,079 .023078410
F1 2,927,780 0.9264 3,160,384 10 60 .018157927
F1 3,654,230 0.8823 4,141,709 7 22 .016490252
F1 2,432,820 0.8761 2,776,875 4 5 .006813073
F1 2,760,070 1.0026 2,752,912 3 4 .006682780
Random Totals: 145,436,630   169,902,220 80 3,235  
Catg J Exception Values: 4,984,646   4,938,877      
Catg D1 Exception Values: 5,697,650   5,279,476      
Total Test Values (4): 156,118,926   180,120,573      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 9,006,029

Confidence Interval Values (5)

Local Test Value: 156,118,926 (Outside Confidence Interval)
State Lower Limit: 171,114,544 (State Test Value minus Margin of Error Percent)
State Upper Limit: 189,126,602 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 215,096,950 (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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