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Collin County
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