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2011 Confidence Interval Detail
102/Harrison
102-903/Waskom ISD

Category Summary

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

Stratum
Variance
A 21,401,700 0.9431 22,692,928 12 494 .025815033
A 22,027,820 0.9031 24,391,341 12 259 .022330391
A 22,194,850 0.9555 23,228,519 11 182 .003251004
A 25,547,730 0.9367 27,274,186 14 127 .015852134
D3 37,948,160 0.9592 39,562,302 16 1,270 .104731261
G1 36,557,849 0.9404 38,874,786 9 116 .019327797
G1 36,761,789 1.0348 35,525,502 8 42 .006321264
G1 37,870,043 1.0426 36,322,696 6 15 .002266809
G1 34,665,166 1.0125 34,237,201 4 6 .002044767
Random Totals: 274,975,107   282,109,461 92 2,511  
Catg J Exception Values: 4,122,533   4,139,566      
Catg D1 Exception Values: 2,619,900   2,734,136      
Total Test Values (4): 281,717,540   288,983,163      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 14,449,158

Confidence Interval Values (5)

State Lower Limit: 274,534,005 (State Test Value minus Margin of Error Percent)
Local Test Value: 281,717,540 (Within Confidence Interval)
State Upper Limit: 303,432,321 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 466,141,744 (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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