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2011 Confidence Interval Detail
126/Johnson
126-904/Grandview ISD

Category Summary

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

Stratum
Variance
A 22,201,860 0.9370 23,694,621 7 373 .007916679
A 20,832,874 0.8947 23,284,759 7 222 .014987073
A 21,943,065 0.9348 23,473,540 7 158 .017201890
A 21,198,746 0.9991 21,217,842 8 105 .002017284
D3 91,706,626 1.0215 89,776,433 15 1,889 .011541688
G1 16,994,434 1.0286 16,521,907 8 41 .001171206
G1 16,796,224 1.0002 16,792,865 7 23 .001857073
G1 16,922,350 1.0193 16,601,933 6 15 .002998176
G1 16,509,120 1.0359 15,936,982 5 10 .001867867
Random Totals: 245,105,299   247,300,882 70 2,836  
Catg J Exception Values: 6,453,617   6,369,891      
Catg D1 Exception Values: 4,111,853   3,618,285      
Total Test Values (4): 255,670,769   257,289,058      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 12,864,453

Confidence Interval Values (5)

State Lower Limit: 244,424,605 (State Test Value minus Margin of Error Percent)
Local Test Value: 255,670,769 (Within Confidence Interval)
State Upper Limit: 270,153,511 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 301,379,089 (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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