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2007 Confidence Interval Detail
091/Grayson
091-903/Denison ISD

Category Summary

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

Stratum
Variance
A 167,820,943 1.0047 167,035,874 43 3,909 .008104662
A 167,699,480 0.9964 168,305,379 45 2,170 .003416461
A 167,850,187 1.0004 167,783,074 38 1,411 .004762271
A 167,657,991 0.9798 171,114,504 35 719 .007461033
D3 65,522,269 0.9122 71,828,841 21 2,243 .113937166
F1 46,586,863 0.7414 62,836,341 7 429 .013831153
F1 47,126,824 0.7676 61,395,029 10 105 .093878959
F1 48,780,374 0.8807 55,388,184 7 28 .020298590
F1 43,720,631 0.9773 44,736,141 3 5 .001426963
L1 36,447,575 1.0631 34,284,239 8 335 .008849762
L1 39,083,727 1.0150 38,506,135 6 45 .004008122
L1 69,760,051 1.0519 66,318,140 2 8 .003328821
Random Totals: 1,068,056,915   1,109,531,881 225 11,407  
Catg D1 Exception Values: 4,027,881   2,561,564      
Total Test Values (4): 1,072,084,796   1,112,093,445      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 55,604,672

Confidence Interval Values (5)

State Lower Limit: 1,056,488,773 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,072,084,796 (Within Confidence Interval)
State Upper Limit: 1,167,698,117 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,094,564,705 (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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