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2008 Confidence Interval Detail
212/Smith
212-906/Whitehouse ISD

Category Summary

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

Stratum
Variance
A 240,122,760 0.9641 249,064,163 50 2,310 .015716403
A 266,082,000 0.9867 269,668,592 61 1,725 .008318731
A 257,901,500 0.9586 269,039,745 32 1,137 .008453807
A 266,114,100 0.9997 266,193,958 9 488 .000094801
D3 119,858,000 0.9762 122,780,168 20 2,488 .034312195
F1 29,609,200 1.0091 29,342,186 7 149 .001514505
F1 36,201,860 1.1690 30,968,229 6 71 .044660136
F1 27,462,300 1.0185 26,963,476 6 23 .001789385
F1 40,884,320 1.0113 40,427,489 4 11 .003511483
Random Totals: 1,284,236,040   1,304,448,006 195 8,402  
Catg D1 Exception Values: 5,899,560   4,098,231      
Total Test Values (4): 1,290,135,600   1,308,546,237      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 65,427,312

Confidence Interval Values (5)

State Lower Limit: 1,243,118,925 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,290,135,600 (Within Confidence Interval)
State Upper Limit: 1,373,973,549 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,550,726,156 (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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