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2008 Confidence Interval Detail
147/Limestone
147-902/Groesbeck ISD

Category Summary

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

Stratum
Variance
A 43,551,802 0.9801 44,436,080 26 1,093 .034307263
A 53,026,221 1.0024 52,899,263 21 683 .006695276
A 53,052,684 0.9900 53,588,570 13 421 .007713396
A 100,589,520 0.9558 105,241,180 13 423 .002204435
D3 126,176,541 1.0463 120,593,081 48 5,930 .034418382
G1 191,174,417 0.6801 281,097,511 16 316 .950415786
G1 189,775,321 0.8376 226,570,345 15 129 .203144451
G1 191,227,579 1.2702 150,549,188 14 71 .230717914
G1 189,684,848 1.4877 127,502,082 12 37 .120803008
Random Totals: 1,138,258,933   1,162,477,300 178 9,103  
Catg J Exception Values: 38,638,896   40,885,919      
Catg D1 Exception Values: 12,382,437   14,852,055      
Total Test Values (4): 1,189,280,266   1,218,215,274      

Margin of Error

Margin of Error Percent: 11.9297945
Margin of Error Value: 145,330,579

Confidence Interval Values (5)

State Lower Limit: 1,072,884,695 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,189,280,266 (Within Confidence Interval)
State Upper Limit: 1,363,545,853 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,265,488,749 (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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