taxes Property Tax Assistance

2020 Confidence Interval Detail

Collin County
043-912/Prosper ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 1,891,734,582 0.9817 1,926,998,657 97 5,875 0.004288139
A 1,821,142,641 0.9862 1,846,626,081 100 4,431 0.002539440
A 1,880,320,462 0.9894 1,900,465,395 97 3,737 0.003905459
A 1,905,907,967 0.9801 1,944,605,619 98 2,490 0.007813128
E 226,353,931 0.9360 241,831,123 10 406 0.049531245
F1 156,071,987 0.9678 161,264,711 10 185 0.049479928
F1 188,167,679 0.9274 202,898,080 10 59 0.090089014
F1 178,446,534 0.8708 204,922,524 5 20 0.016625476
F1 153,190,216 0.8854 173,018,089 5 7 0.044995849
Random Totals: 8,401,335,999 8,602,630,279 432 17,210
CATG D1 EXCEPTION VALUES: 1,916,131 1,466,594
Total Test Values 8,403,252,130 8,604,096,873

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 430,204,844

Confidence Interval Values(5)

Local Test Value: 8,403,252,130 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 8,173,892,029 (State Test Value minus Margin of Error Percent)
State Upper Limit: 9,034,301,717 (State Test Value plus Margin of Error Percent)

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