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As part of a laboratory experiment, five students measured the weight of the same leaf four times. They recorded 20 slightly different weights. All of the work was done carefully and correctly. Their goal was to be as accurate as possible and reduce error in the experiment to a minimum. Which of the following is the best method to report the weight of the leaf?
Best method to report a leaf's weight · Asked in 1 wave, 2008 · 1,505 responses · weighted estimates computed from individual responses
| Group | Ask the teacher to weigh the leaf | Report the first measurement | Average all of the weights that were recorded | Average the highest and lowest weights recorded | Discard the lowest five weights | n | MoE | |
|---|---|---|---|---|---|---|---|---|
| All respondents | 7% | 5% | 74% | 12% | 2% | 1505 | ±3 | |
| Democrats |
General Social Survey 2008 · US adults 18+ living in households (English, and Spanish since 2006). Shares of people who gave an answer. n is unweighted; ± is the 95% margin of error at 50% from the weighted effective sample. Groups with an effective sample under 50 are grayed; under 20, hidden.
| Poll | Field dates | Mode | Respondents | Responses |
|---|---|---|---|---|
| General Social Survey 2008 | 2008-04-17 to 2008-09-13 | face to face | 2,023 | 1,505 |
| 9% |
| 7% |
| 65% |
| 16% |
| 3% |
| 533 |
| ±5 |
| Independents (incl. leaners) | 5% | 5% | 78% | 10% | 2% | 570 | ±5 |
| Republicans | 5% | 4% | 80% | 9% | 2% | 366 | ±6 |