2011 Confidence Interval Detail
152/Lubbock
152-908/Roosevelt ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 28,936,424 | 0.9574 | 30,223,965 | 10 | 594 | .071107124 |
| A | 27,818,981 | 0.9163 | 30,360,123 | 10 | 257 | .007704757 |
| A | 30,204,394 | 0.9530 | 31,694,013 | 10 | 188 | .014379928 |
| A | 34,145,122 | 0.9985 | 34,196,417 | 10 | 120 | .011665477 |
| D3 | 15,535,651 | 0.7908 | 19,645,487 | 15 | 869 | .120602946 |
| G1 | 60,181,484 | 1.0217 | 58,903,283 | 8 | 49 | .013213053 |
| Random Totals: | 196,822,056 | 205,023,288 | 63 | 2,077 | ||
| Catg D1 Exception Values: | 19,550,119 | 17,633,770 | ||||
| Catg G1 Exception Values: | 16,770,204 | 16,427,082 | ||||
| Total Test Values (4): | 233,142,379 | 239,084,140 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 11,954,207 |
Confidence Interval Values (5)
| State Lower Limit: | 227,129,933 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 233,142,379 | (Within Confidence Interval) |
| State Upper Limit: | 251,038,347 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 242,778,911 | (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