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2010 Confidence Interval Detail
178/Nueces
178-905/Driscoll ISD

Category Summary

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

Stratum
Variance
A 2,281,670 0.9616 2,372,785 9 80 .007259595
A 5,640,260 0.9253 6,095,601 9 128 .001738682
A 6,980,946 1.0038 6,954,519 8 107 .004034497
A 5,583,851 1.0600 5,267,784 9 51 .111645289
G1 11,949,332 1.0317 11,582,177 26 61 .016666803
G1 11,998,831 1.0652 11,264,393 12 26 .047025034
G1 13,052,251 1.0356 12,603,564 8 14 .006018082
G1 10,694,076 1.1480 9,315,397 5 7 .009881387
Random Totals: 68,181,217   65,456,220 86 474  
Catg J Exception Values: 5,750,610   5,510,676      
Catg D1 Exception Values: 9,896,303   10,749,172      
Total Test Values (4): 83,828,130   81,716,068      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,085,803

Confidence Interval Values (5)

State Lower Limit: 77,630,265 (State Test Value minus Margin of Error Percent)
Local Test Value: 83,828,130 (Within Confidence Interval)
State Upper Limit: 85,801,871 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 138,645,178 (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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