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2009 Confidence Interval Detail
198/Robertson
198-905/Hearne ISD

Category Summary

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

Stratum
Variance
A 12,126,160 0.9529 12,725,533 16 559 .085277114
A 16,162,110 1.0324 15,654,892 15 412 .066318094
A 15,809,860 1.0054 15,724,945 16 268 .043177428
A 37,584,230 0.9871 38,075,403 17 375 .152434349
D3 40,885,730 0.7696 53,125,949 21 1,759 .246474246
F1 5,148,060 0.8354 6,162,389 8 102 .141522414
F1 5,777,780 0.8230 7,020,389 7 25 .108552433
F1 5,926,800 0.9689 6,117,040 4 7 .002698190
G1 22,560,072 1.0393 21,706,987 11 30 .007030836
G1 23,267,711 1.0554 22,046,344 6 12 .001280929
G1 21,044,068 1.0159 20,714,704 5 6 .001338844
Random Totals: 206,292,581   219,074,575 126 3,555  
Catg J Exception Values: 23,833,390   24,940,978      
Catg D1 Exception Values: 6,075,050   6,505,973      
Catg F1 Exception Values: 3,538,250   4,854,120      
Catg G1 Exception Values: 21,457,734   21,056,224      
Total Test Values (4): 261,197,005   276,431,870      

Margin of Error

Margin of Error Percent: 5.0185190
Margin of Error Value: 13,872,786

Confidence Interval Values (5)

Local Test Value: 261,197,005 (Outside Confidence Interval)
State Lower Limit: 262,559,084 (State Test Value minus Margin of Error Percent)
State Upper Limit: 290,304,656 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 330,311,221 (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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