2008 Confidence Interval Detail
043/Collin
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 | 227,340,205 | 0.9612 | 236,517,067 | 23 | 1,410 | .003698586 |
| A | 256,678,981 | 1.0104 | 254,036,996 | 23 | 964 | .002528654 |
| A | 263,465,848 | 0.9704 | 271,502,317 | 24 | 636 | .002678915 |
| A | 267,301,820 | 1.0006 | 267,141,535 | 25 | 375 | .000629863 |
| D3 | 152,886,452 | 0.9901 | 154,415,162 | 22 | 935 | .008104792 |
| F1 | 13,748,626 | 0.7588 | 18,118,906 | 10 | 96 | .228659865 |
| F1 | 12,947,463 | 0.9870 | 13,117,997 | 6 | 18 | .007156181 |
| F1 | 14,318,170 | 0.9480 | 15,103,555 | 5 | 10 | .014381136 |
| Random Totals: | 1,208,687,565 | 1,229,953,535 | 138 | 4,444 | ||
| Catg D1 Exception Values: | 2,883,802 | 3,001,832 | ||||
| Catg F1 Exception Values: | 33,306,111 | 34,032,890 | ||||
| Total Test Values (4): | 1,244,877,478 | 1,266,988,257 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 63,349,413 |
Confidence Interval Values (5)
| State Lower Limit: | 1,203,638,844 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,244,877,478 | (Within Confidence Interval) |
| State Upper Limit: | 1,330,337,670 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,590,729,151 | (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, D3, 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