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2011 Confidence Interval Detail
216/Sterling
216-901/Sterling City ISD

Category Summary

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

Stratum
Variance
A 3,169,760 0.7447 4,256,425 16 149 .062507190
A 3,165,240 0.8265 3,829,691 14 74 .037966992
A 3,241,030 0.8063 4,019,633 15 50 .038453878
A 3,088,630 0.7285 4,239,712 13 22 .039473363
G1 71,936,539 1.0468 68,720,423 11 393 .050525510
G1 72,060,820 1.0313 69,873,771 10 106 .012951603
G1 73,779,369 1.0100 73,048,880 8 42 .001839725
G1 69,702,585 1.0027 69,514,895 6 12 .001203319
Random Totals: 300,143,973   297,503,430 93 848  
Catg J Exception Values: 6,145,518   6,538,368      
Catg D1 Exception Values: 9,752,930   16,255,089      
Total Test Values (4): 316,042,421   320,296,887      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 16,014,844

Confidence Interval Values (5)

State Lower Limit: 304,282,043 (State Test Value minus Margin of Error Percent)
Local Test Value: 316,042,421 (Within Confidence Interval)
State Upper Limit: 336,311,731 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 446,266,055 (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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