taxes Property Tax Assistance

2017 Confidence Interval Detail

126/Johnson
126-901/Alvarado ISD

Category Summary

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

Stratum
Variance
A 88,594,657 0.8149 108,718,440 16 1,789 .087468370
A 83,174,389 0.8451 98,419,582 40 930 .077530764
A 113,119,001 0.9160 123,492,359 62 796 .037667414
A 119,183,523 0.9726 122,541,151 54 457 .036547088
E 273,083,972 0.8555 319,209,786 33 3,015 .105525944
F1 27,784,938 0.9100 30,532,899 9 157 .066922745
F1 24,780,026 0.9499 26,086,984 9 59 .043153944
F1 26,747,463 0.9667 27,668,835 7 29 .004399205
F1 32,904,406 0.8997 36,572,642 6 15 .082175112
G1 35,425,928 1.0466 33,848,584 9 174 .025226638
G1 35,631,847 1.0248 34,769,562 9 69 .002038886
G1 34,861,935 1.0372 33,611,584 8 47 .015656112
G1 35,060,111 1.0117 34,654,652 7 29 .000612835
L1 24,008,344 0.9712 24,720,288 9 135 .008873301
L1 47,596,704 0.8697 54,727,727 12 29 .094565348
Random Totals: 1,001,957,244   1,109,575,075 290 7,730  
Catg J Exception Values: 9,084,014   8,303,510      
Catg D1 Exception Values: 5,148,532   4,140,295      
Total Test Values (4): 1,016,189,790   1,122,018,880      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 56,100,944

Confidence Interval Values (5)

Local Test Value: 1,016,189,790 (Outside Confidence Interval)
State Lower Limit: 1,065,917,936 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,178,119,824 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,214,385,793 (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