Examlex
The ________ separate(s) the two atria.
Standard Error
The standard deviation of the sampling distribution of a statistic, commonly the mean, indicating the variation of a sample statistic from the population parameter.
Lower Tailed Test
A statistical hypothesis test where the critical area of a distribution is in its lower tail, used to determine if a sample mean is significantly lower than a known or assumed population mean.
Test Statistic
A statistic calculated from sample data, used to determine whether to reject the null hypothesis in a hypothesis test.
Null Hypothesis
The null hypothesis is a statement or assumption that there is no effect or no difference, serving as the default or starting assumption in statistical hypothesis testing.
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