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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 167,837,972 1.0047 167,052,824 43 3,909 .008104662
A 167,716,497 0.9964 168,322,458 45 2,170 .003416461
A 167,867,219 1.0004 167,800,099 38 1,411 .004762271
A 167,675,004 0.9798 171,131,868 35 719 .007461033
D3 65,847,026 0.9122 72,184,856 21 2,251 .113937166
F1 46,723,295 0.7414 63,020,360 7 429 .013831153
F1 47,264,837 0.7676 61,574,827 10 105 .093878959
F1 48,923,229 0.8807 55,550,391 7 28 .020298590
F1 43,848,669 0.9773 44,867,153 3 5 .001426963
L1 36,716,178 1.0631 34,536,900 8 335 .008849762
L1 39,371,757 1.0150 38,789,908 6 45 .004008122
L1 70,274,152 1.0519 66,806,875 2 8 .003328821
Random Totals: 1,070,065,835   1,111,638,519 225 11,415  
Catg D1 Exception Values: 4,026,797   2,559,818      
Total Test Values (4): 1,074,092,632   1,114,198,337      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 55,709,917

Confidence Interval Values (5)

State Lower Limit: 1,058,488,420 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,074,092,632 (Within Confidence Interval)
State Upper Limit: 1,169,908,254 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,100,650,774 (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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