taxes Property Tax Assistance

2017 Confidence Interval Detail

114/Howard
114-901/Big Spring ISD

Category Summary

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

Stratum
Variance
A 153,254,155 0.9622 159,274,740 39 3,268 .140251199
A 154,357,557 0.8505 181,490,367 40 1,753 .050211039
A 154,614,677 0.9550 161,900,185 45 1,067 .027278101
A 153,341,742 0.9886 155,109,996 25 579 .016509999
F1 57,272,600 0.9438 60,682,984 15 419 .049911675
F1 62,023,596 0.9512 65,205,631 17 105 .193284407
F1 57,711,114 0.9482 60,863,862 14 22 .023169684
F1 26,156,911 0.9525 27,461,324 4 4 .002808569
G1 46,838,190 0.9472 49,449,103 9 139 .017419774
G1 45,527,689 1.0305 44,180,193 7 23 .003759401
G1 46,468,330 0.9944 46,730,018 6 13 .000263167
G1 45,266,466 1.0304 43,930,965 4 7 .000406258
L1 20,569,208 0.9957 20,658,038 10 254 .008649744
L1 21,209,014 0.9761 21,728,321 9 61 .001167281
L1 20,475,573 1.0151 20,170,991 7 20 .003806675
L1 17,701,179 0.9435 18,761,186 4 6 .001948259
Random Totals: 1,082,788,001   1,137,597,904 255 7,740  
Catg J Exception Values: 14,707,570   13,946,621      
Catg D1 Exception Values: 12,379,318   9,678,180      
Total Test Values (4): 1,109,874,889   1,161,222,705      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 58,061,135

Confidence Interval Values (5)

State Lower Limit: 1,103,161,570 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,109,874,889 (Within Confidence Interval)
State Upper Limit: 1,219,283,840 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,675,529,328 (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, D2, E, 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