2009 Confidence Interval Detail
158/Matagorda
158-901/Bay City ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 102,855,800 | 1.0268 | 100,171,212 | 19 | 1,889 | .023263691 |
| A | 102,953,315 | 1.0109 | 101,843,224 | 23 | 1,060 | .023960040 |
| A | 123,670,826 | 1.0171 | 121,591,609 | 26 | 957 | .029270056 |
| A | 121,234,580 | 0.9992 | 121,331,645 | 13 | 582 | .004531978 |
| F1 | 31,899,438 | 0.9364 | 34,066,038 | 9 | 326 | .029300130 |
| F1 | 33,123,691 | 0.8793 | 37,670,523 | 9 | 130 | .019648809 |
| F1 | 31,107,822 | 0.8519 | 36,515,814 | 7 | 46 | .008738106 |
| F1 | 35,042,500 | 0.9471 | 36,999,789 | 5 | 15 | .003534918 |
| G1 | 25,433,630 | 0.9465 | 26,871,241 | 5 | 24 | .062099851 |
| G1 | 23,335,240 | 1.0112 | 23,076,780 | 4 | 8 | .001616216 |
| G1 | 26,176,040 | 1.0828 | 24,174,400 | 3 | 5 | .002305977 |
| L1 | 14,472,590 | 0.9527 | 15,191,130 | 8 | 275 | .018130459 |
| L1 | 14,300,810 | 1.0275 | 13,918,063 | 6 | 74 | .001927993 |
| L1 | 14,765,080 | 1.0627 | 13,893,931 | 6 | 26 | .003201358 |
| L1 | 13,322,750 | 1.0072 | 13,227,512 | 3 | 3 | .013872959 |
| Random Totals: | 713,694,112 | 720,542,911 | 146 | 5,420 | ||
| Catg J Exception Values: | 35,980,572 | 36,510,001 | ||||
| Catg D1 Exception Values: | 12,832,574 | 14,387,280 | ||||
| Catg G1 Exception Values: | 19,733,270 | 19,206,759 | ||||
| Total Test Values (4): | 782,240,528 | 790,646,951 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 39,532,348 |
Confidence Interval Values (5)
| State Lower Limit: | 751,114,603 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 782,240,528 | (Within Confidence Interval) |
| State Upper Limit: | 830,179,299 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,027,082,567 | (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