2009 Confidence Interval Detail
101/Harris
101-919/Spring ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 992,227,798 | 1.0603 | 935,799,112 | 78 | 10,502 | .028471377 |
| A | 1,027,518,092 | 1.0259 | 1,001,577,241 | 70 | 8,654 | .021395544 |
| A | 861,284,230 | 1.0078 | 854,618,208 | 75 | 5,978 | .018341082 |
| A | 827,351,421 | 1.0603 | 780,299,369 | 75 | 3,637 | .051024630 |
| B | 207,772,243 | 0.9789 | 212,250,733 | 6 | 44 | .002074471 |
| B | 166,025,483 | 0.9347 | 177,624,353 | 5 | 22 | .003242013 |
| B | 203,390,687 | 0.9740 | 208,820,007 | 5 | 18 | .000868368 |
| B | 122,208,175 | 0.9404 | 129,953,397 | 4 | 7 | .005607465 |
| F1 | 437,180,663 | 0.8663 | 504,652,733 | 8 | 567 | .012114533 |
| F1 | 406,214,393 | 0.9526 | 426,427,034 | 7 | 170 | .018337259 |
| F1 | 408,778,179 | 0.9769 | 418,444,241 | 6 | 80 | .002169004 |
| F1 | 345,803,698 | 1.0401 | 332,471,587 | 6 | 27 | .008341652 |
| L1 | 131,134,343 | 1.0155 | 129,132,785 | 11 | 1,275 | .005513978 |
| L1 | 145,771,074 | 0.9475 | 153,848,099 | 10 | 187 | .007679740 |
| L1 | 119,169,775 | 1.0074 | 118,294,396 | 6 | 42 | .007162289 |
| L1 | 133,473,394 | 1.0020 | 133,206,980 | 4 | 9 | .002396376 |
| Random Totals: | 6,535,303,648 | 6,517,420,275 | 376 | 31,219 | ||
| Catg D1 Exception Values: | 11,696,820 | 11,655,552 | ||||
| Total Test Values (4): | 6,547,000,468 | 6,529,075,827 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 326,453,791 |
Confidence Interval Values (5)
| State Lower Limit: | 6,202,622,036 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 6,547,000,468 | (Within Confidence Interval) |
| State Upper Limit: | 6,855,529,618 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 8,332,879,764 | (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