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2009 Confidence Interval Detail
224/Throckmorton
224-901/Throckmorton ISD

Category Summary

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

Stratum
Variance
A 3,280,310 0.9623 3,408,823 7 165 .011966773
A 3,164,900 1.0063 3,145,086 7 89 .007883636
A 3,166,370 0.9515 3,327,767 7 56 .012622599
A 3,414,010 0.9193 3,713,706 7 38 .048197195
D3 10,863,130 0.7553 14,382,537 21 2,776 .039068833
G1 14,168,710 1.0008 14,157,384 15 112 .003373761
G1 13,878,870 1.0067 13,786,500 15 40 .000971629
G1 14,812,290 1.0297 14,385,054 10 16 .007012016
Random Totals: 66,748,590   70,306,857 89 3,292  
Catg J Exception Values: 3,327,316   4,269,285      
Catg D1 Exception Values: 21,238,360   17,300,598      
Catg G1 Exception Values: 13,190,939   13,022,414      
Total Test Values (4): 104,505,205   104,899,154      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 5,244,958

Confidence Interval Values (5)

State Lower Limit: 99,654,196 (State Test Value minus Margin of Error Percent)
Local Test Value: 104,505,205 (Within Confidence Interval)
State Upper Limit: 110,144,112 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 110,933,716 (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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