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2011 Confidence Interval Detail
102/Harrison
102-901/Karnack ISD

Category Summary

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

Stratum
Variance
A 23,330,580 0.8020 29,090,499 10 532 .092404476
A 23,926,720 0.9985 23,962,664 13 260 .018052072
A 22,343,850 1.0474 21,332,681 10 153 .031312836
A 24,662,620 1.0399 23,716,338 14 100 .031009361
D3 45,643,560 1.0376 43,989,553 16 1,580 .130016334
G1 16,907,740 1.0048 16,826,971 8 50 .001168639
G1 17,175,634 1.0443 16,447,031 6 15 .003288435
G1 15,006,887 0.9831 15,264,863 4 7 .004714085
G1 15,966,190 1.0265 15,554,009 3 4 .001606671
Random Totals: 204,963,781   206,184,609 84 2,701  
Catg J Exception Values: 107,569   102,710      
Catg D1 Exception Values: 5,638,800   5,983,952      
Total Test Values (4): 210,710,150   212,271,271      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 10,613,564

Confidence Interval Values (5)

State Lower Limit: 201,657,707 (State Test Value minus Margin of Error Percent)
Local Test Value: 210,710,150 (Within Confidence Interval)
State Upper Limit: 222,884,835 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 229,977,618 (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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