Examlex
Activation of the sympathetic nervous system leads to pupil dilation,inhibition of digestion,and an accelerated heartbeat.
Standard Deviation
A measure of the amount of variation or dispersion in a set of values, showing how much the values differ from the mean.
Margin Of Error
An expression of the maximum expected difference between the true population parameter and a sample estimate of that parameter.
T-Distribution
A probability distribution that arises in the sampling distribution of the sample mean, especially when the sample size is small and the population variance is unknown.
Confidence Interval
A range of values, derived from sample data, that is believed to contain the true population parameter with a certain level of confidence.
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