taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
092/Gregg
092-903/Longview ISD

Category Summary

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

Stratum
Variance
A 405,258,235 1.0216 396,689,737 44 5,503 .057877036
A 412,723,305 0.9937 415,339,947 50 3,147 .007906043
A 427,615,005 0.9930 430,629,411 40 2,353 .003710377
A 435,894,900 0.9762 446,522,127 24 1,246 .008088770
F1 197,214,785 0.7088 278,237,563 10 872 .446774901
F1 185,809,867 0.8703 213,500,939 10 237 .020582758
F1 190,577,152 0.8306 229,445,163 9 92 .074991145
F1 199,904,610 0.8826 226,495,139 7 23 .038922000
L1 123,571,784 1.1336 109,008,278 11 966 .089606179
L1 126,755,500 1.0335 122,646,831 10 225 .093910086
L1 119,692,970 1.0636 112,535,700 9 68 .008914656
L1 139,170,870 1.0265 135,578,052 6 20 .000904755
Random Totals: 2,964,188,983   3,116,628,887 230 14,752  
Catg D1 Exception Values: 4,025,165   3,111,766      
Total Test Values (4): 2,968,214,148   3,119,740,653      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 155,987,033

Confidence Interval Values (5)

State Lower Limit: 2,963,753,620 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,968,214,148 (Within Confidence Interval)
State Upper Limit: 3,275,727,686 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,918,583,169 (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