2009 Confidence Interval Detail
101/Harris
101-921/Tomball ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 668,861,138 | 0.9553 | 700,158,210 | 31 | 4,927 | .016310433 |
| A | 604,080,841 | 0.9571 | 631,157,498 | 33 | 3,205 | .010567552 |
| A | 575,224,118 | 0.9993 | 575,627,057 | 32 | 2,354 | .012961359 |
| A | 714,472,784 | 0.9472 | 754,299,814 | 31 | 1,511 | .017341963 |
| F1 | 294,799,493 | 0.9646 | 305,618,384 | 7 | 360 | .008655494 |
| F1 | 269,458,281 | 0.9835 | 273,978,933 | 6 | 61 | .000652928 |
| F1 | 251,313,183 | 0.8701 | 288,832,528 | 5 | 13 | .046902703 |
| Random Totals: | 3,378,209,838 | 3,529,672,424 | 145 | 12,431 | ||
| Catg D1 Exception Values: | 5,343,634 | 4,847,353 | ||||
| Catg F1 Exception Values: | 129,896,929 | 131,360,000 | ||||
| Total Test Values (4): | 3,513,450,401 | 3,665,879,777 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 183,293,989 |
Confidence Interval Values (5)
| State Lower Limit: | 3,482,585,788 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 3,513,450,401 | (Within Confidence Interval) |
| State Upper Limit: | 3,849,173,766 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 4,612,705,938 | (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