2011 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 | 684,089,064 | 0.9584 | 713,782,412 | 40 | 5,022 | .006432993 |
| A | 686,178,541 | 0.9587 | 715,738,543 | 40 | 3,614 | .009147736 |
| A | 729,919,838 | 0.9518 | 766,883,629 | 47 | 2,866 | .009046454 |
| A | 779,553,329 | 0.9548 | 816,457,194 | 46 | 1,527 | .008036639 |
| F1 | 208,488,646 | 0.9042 | 230,578,020 | 12 | 378 | .021010006 |
| F1 | 203,275,975 | 1.1094 | 183,230,553 | 9 | 99 | .028705419 |
| F1 | 189,797,009 | 0.9771 | 194,245,225 | 9 | 30 | .016062895 |
| F1 | 236,571,284 | 1.0180 | 232,388,295 | 4 | 10 | .009898761 |
| L1 | 55,504,357 | 1.0258 | 54,108,361 | 10 | 638 | .045869809 |
| L1 | 56,527,880 | 1.0015 | 56,443,215 | 9 | 112 | .015224958 |
| L1 | 59,384,215 | 0.9651 | 61,531,670 | 7 | 22 | .000872244 |
| Random Totals: | 3,889,290,138 | 4,025,387,117 | 233 | 14,318 | ||
| Catg D1 Exception Values: | 4,534,978 | 4,567,608 | ||||
| Catg L1 Exception Values: | 17,999,417 | 18,989,080 | ||||
| Total Test Values (4): | 3,911,824,533 | 4,048,943,805 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 202,447,190 |
Confidence Interval Values (5)
| State Lower Limit: | 3,846,496,615 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 3,911,824,533 | (Within Confidence Interval) |
| State Upper Limit: | 4,251,390,995 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 5,069,887,459 | (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