All reported margins of
sampling error include computed design effects for weighting.
The margin of
sampling error is plus or minus four percentage points for the full sample as well as the sample of 855 registered voters.
The link discharge
sampling error was less than 10 percent for all run sets, showing minimal variability across all runs, and tended to stabilize around 2 percent after more runs.
While the review of the entire population is not subject to
sampling error, it is subject to measurement error.
The
sampling error probability refers to a statistical property of data underlying evidence offered to prove a relevant fact, such as the connection between the defendant's act and the plaintiff's harm.
Four tests were selected to evaluate effects of
sampling error on the feasibility of detecting density dependence in natural populations.
Also, the values for
sampling error variance are reported, along with the lower boundary of credibility values, and the unexplained variance.
In addition to variability in the population, the sample design and sample size also determine the amount of
sampling error. If probability samples are used, estimates of
sampling error can be made from the sample.
Selected estimates of
sampling errors are given in A.
However,
sampling errors also could have occurred when a portion was taken for analysis or when the samples were collected at the foundry.
The SWS used face-to-face interviews of 1,440 adults nationwide, with
sampling error margins of +-2.6 percent for national percentages.
This paper discusses the impact of
sampling error on the construction of confidence intervals around effect sizes.