Examlex
A sound,emblem,or other sign that is arbitrarily linked to something else and represents it in a meaningful way is called a(n) :
Null Hypothesis
A type of hypothesis used in statistics that suggests there is no significant difference or effect in a particular condition, serving as a default position until evidence suggests otherwise.
P < .05
A statistical threshold indicating that the probability of observing the obtained result, or more extreme, if the null hypothesis is true, is less than 5%.
T-test
A statistical test used to compare the means of two groups or test a single mean against a known value.
Critical Value
A point on the scale of the test statistic beyond which we reject the null hypothesis; it defines the cutoff between significance and non-significance.
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