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2007 Confidence Interval Detail
230/Upshur
230-902/Gilmer ISD

Category Summary

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

Stratum
Variance
A 75,777,690 0.9409 80,537,454 13 1,332 .018871131
A 75,794,677 0.9396 80,666,961 13 805 .009171807
A 75,773,207 1.0046 75,426,246 13 593 .028401135
A 75,730,077 1.0262 73,796,606 29 369 .016355109
D3 219,475,275 0.9543 229,985,618 33 7,001 .106372601
F1 16,326,796 0.7570 21,567,762 7 195 .141489177
F1 16,310,066 0.7761 21,015,418 6 72 .105920166
F1 16,193,938 0.8470 19,119,171 6 28 .059003934
F1 16,174,134 0.8302 19,482,214 4 7 .030073465
G1 72,063,925 0.9878 72,953,963 8 165 .024010011
G1 71,287,890 1.0184 69,999,892 7 77 .001089145
G1 71,078,232 0.9966 71,320,722 7 50 .002452966
G1 71,292,276 0.9894 72,056,070 6 25 .003428126
Random Totals: 873,278,183   907,928,097 152 10,719  
Catg D1 Exception Values: 11,656,880   10,144,114      
Total Test Values (4): 884,935,063   918,072,211      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 45,903,611

Confidence Interval Values (5)

State Lower Limit: 872,168,600 (State Test Value minus Margin of Error Percent)
Local Test Value: 884,935,063 (Within Confidence Interval)
State Upper Limit: 963,975,822 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 853,444,223 (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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