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Montgomery County
2019 Confidence Interval Detail
Montgomery County
170-903/Montgomery ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,340,999,030 | 0.9696 | 1,383,043,554 | 101 | 7316 | 0.006692292 |
| A | 1,389,979,780 | 0.9798 | 1,418,636,232 | 101 | 4391 | 0.016791319 |
| A | 1,392,831,460 | 0.9664 | 1,441,257,719 | 103 | 2890 | 0.010220416 |
| A | 1,501,244,293 | 0.9704 | 1,547,036,576 | 74 | 1779 | 0.019128285 |
| E | 358,712,113 | 0.8770 | 409,021,794 | 20 | 1242 | 0.039070196 |
| F1 | 87,624,127 | 0.8377 | 104,600,844 | 10 | 238 | 0.061677760 |
| F1 | 82,672,340 | 0.8182 | 101,041,726 | 9 | 76 | 0.097926306 |
| F1 | 65,004,700 | 0.8296 | 78,356,678 | 7 | 25 | 0.009332905 |
| F1 | 72,782,210 | 0.9005 | 80,824,220 | 5 | 10 | 0.003227462 |
| Random Totals: | 6,291,850,053 | 6,563,819,343 | 430 | 17,967 | ||
| CATG D1 EXCEPTION VALUES: | 14,016,463 | 9,757,737 | ||||
| Total Test Values(1) | 6,305,866,516 | 6,573,577,080 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 328,678,854 |
Confidence Interval Values(5)
| Local Test Value: | 6,305,866,516 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 6,244,898,226 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 6,902,255,934 | (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