random sampling error造句

• There is the possibility for random sampling error that could be the cause for the difference if food vacuoles between the control and experimental groups.
• The "'margin of error "'is a statistic expressing the amount of random sampling error in a population had been queried.
• Ulrich Schimmack conducted a meta-analysis of published studies and found that most studies could produce significant results only with the help of random sampling error.
• Increasing the number of samples cannot increase the amount of information in the original data; it can only reduce the effects of random sampling errors which can arise from a bootstrap procedure itself.
• If an approximate confidence interval is used ( for example, by assuming the distribution is normal and then modeling the confidence interval accordingly ), then the margin of error may only take random sampling error into account.
• However, this does not necessarily mean that 77 % of men were definitively cured of prostate cancer, since systematic and random sampling errors are present in the biopsy process, and therefore recurrent or previously undetected cancer can be missed.
• However, the margin of error only accounts for random sampling error, so it is blind to systematic errors that may be introduced by non-response or by interactions between the survey and subjects'memory, motivation, communication and knowledge.