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2009 Confidence Interval Detail
231/Upton
231-902/Rankin ISD

Category Summary

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

Stratum
Variance
A 2,167,030 0.8690 2,493,705 7 121 .005761946
A 2,442,010 0.8309 2,938,994 6 80 .057495535
A 2,725,010 0.9176 2,969,714 6 59 .000373111
A 2,759,310 0.9107 3,029,878 6 37 .003473863
G1 449,165,503 1.0209 439,970,127 11 367 .001993315
G1 453,071,912 1.0044 451,087,129 10 104 .002117779
G1 452,814,158 0.9730 465,379,402 10 41 .002023231
G1 441,099,414 1.0033 439,648,574 6 13 .000742570
Random Totals: 1,806,244,347   1,807,517,523 62 822  
Catg D1 Exception Values: 4,294,896   12,215,385      
Total Test Values (4): 1,810,539,243   1,819,732,908      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 90,986,645

Confidence Interval Values (5)

State Lower Limit: 1,728,746,263 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,810,539,243 (Within Confidence Interval)
State Upper Limit: 1,910,719,553 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,019,744,742 (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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