taxes Property Tax Assistance

2018 Confidence Interval Detail

043/Collin
043-901/Allen ISD

Category Summary

(1)
Category		 (1)
Local
Value		 (1)
Stratum
Ratio		 (1)
State
Value		 (2)
Sample
Size		 (3)
Total
Parcels
Stratum
Variance
A 1,827,471,242 0.9548 1,913,983,287 203 7,639 .007058466
A 2,620,141,340 0.9917 2,642,070,525 186 8,373 .003316563
A 2,543,556,464 0.9886 2,572,887,380 199 6,108 .002392231
A 2,556,907,727 0.9844 2,597,427,598 186 4,099 .003426928
B 210,863,129 0.8231 256,181,666 6 12 .029319062
B 188,836,912 0.9439 200,060,295 4 6 .006129906
B 410,962,310 0.9690 424,109,711 4 9 .003010346
F1 357,980,492 0.8690 411,945,330 12 218 .115750868
F1 419,249,762 1.0468 400,506,078 9 102 .023180212
F1 492,585,699 0.9733 506,098,530 8 40 .018658814
F1 440,216,314 0.9938 442,962,683 3 6 .000613028
L1 196,098,092 0.9676 202,664,419 10 644 .004636853
L1 199,087,428 0.9846 202,201,328 10 61 .008887144
L1 144,785,144 1.0519 137,641,548 5 10 .003600221
L1 340,923,714 1.0004 340,787,399 2 6 .000000371
Random Totals: 12,949,665,769   13,251,527,777 847 27,333  
Catg D1 Exception Values: 249,819   224,228      
Catg B Exception Values: 193,300,000   203,082,494      
Total Test Values (4): 13,143,215,588   13,454,834,499      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 672,741,724

Confidence Interval Values (5)

State Lower Limit: 12,782,092,775 (State Test Value minus Margin of Error Percent)
Local Test Value: 13,143,215,588 (Within Confidence Interval)
State Upper Limit: 14,127,576,223 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 13,758,402,558 (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