|
q2 - basicq
|
11-08-2010, 07:49 AM
Whe n com pare d to the 99% confide nce inte rv al, the 95% confidence interval is
(A) less precise and less accurate (B) more precise but less accurate © more precise and more accurate (D) less precise and more accurate
11-08-2010, 09:54 AM
The answer is B. With respect to estimating the mean, precision reflects how reliable the estimate is and accuracy reflects how close the estimate is to the true mean. The wider the CI, the less precise and the more accurate the estimate of the mean. When compared to a 99% confidence interval, a 95% confidence interval will be more precise
(smaller SE and width of the confidence interval) but less accurate (the sample is less likely to be representative). |
| « Next Oldest | Next Newest » |
