Veteran's Day

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2007 Confidence Interval Detail
091/Grayson
091-901/Bells ISD

Category Summary

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

Stratum
Variance
A 16,648,513 0.9463 17,593,272 15 323 .038758271
A 16,603,785 0.9440 17,588,755 13 176 .010196365
A 16,739,499 1.0278 16,286,728 13 125 .005507903
A 16,486,688 1.0262 16,065,765 14 87 .007086732
D3 43,473,422 0.9671 44,952,354 28 1,674 .060097758
Random Totals: 109,951,907   112,486,874 83 2,385  
Catg J Exception Values: 5,462,704   5,473,265      
Catg D1 Exception Values: 3,555,942   2,319,551      
Total Test Values (4): 118,970,553   120,279,690      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 6,013,985

Confidence Interval Values (5)

State Lower Limit: 114,265,705 (State Test Value minus Margin of Error Percent)
Local Test Value: 118,970,553 (Within Confidence Interval)
State Upper Limit: 126,293,675 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 126,857,056 (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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