Examlex
An aptitude test has a mean score of 80 and a standard deviation of 5. The population of scores is normally distributed. What raw score corresponds to the 70th percentile?
Margin of Error
The range of values above and below the sample statistic in a confidence interval, often used to indicate the precision of an estimate.
Sampling Variability
The variation of sample statistics from sample to sample, due to the random selection of samples from the population.
Nonresponse Bias
Bias that occurs in survey results when individuals who do not participate differ significantly from those who do in ways that affect the survey's outcome.
Surgical Site Infections
Infections emerging in the surgical site following the operation.
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