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2007 Confidence Interval Detail
211/Sherman
211-902/Stratford ISD

Category Summary

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

Stratum
Variance
A 7,986,858 0.8911 8,962,920 13 276 .039835798
A 7,966,907 1.0568 7,538,708 12 149 .007816106
A 8,008,783 0.9980 8,024,833 11 102 .007759147
A 7,827,616 0.9481 8,256,108 8 56 .020142518
D3 10,615,930 0.8909 11,915,961 20 1,586 .085610869
G1 49,432,630 1.0302 47,983,527 12 148 .018740908
G1 49,641,890 1.0584 46,902,768 11 74 .012787147
G1 49,687,610 1.0345 48,030,556 10 49 .006397139
G1 48,459,150 1.0290 47,093,440 8 23 .006109371
Random Totals: 239,627,374   234,708,821 105 2,463  
Catg J Exception Values: 20,438,400   22,033,203      
Catg D1 Exception Values: 53,736,460   50,446,484      
Total Test Values (4): 313,802,234   307,188,508      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 15,359,425

Confidence Interval Values (5)

State Lower Limit: 291,829,083 (State Test Value minus Margin of Error Percent)
Local Test Value: 313,802,234 (Within Confidence Interval)
State Upper Limit: 322,547,933 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 384,570,197 (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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