Examlex
Put the radical expression into simplified form. Assume all variables represent positive numbers.
Population Mean
The average of all the items in a population, representing the central tendency.
Critical Value
A point on a statistical distribution that represents a threshold at which the null hypothesis is rejected if exceeded.
Alpha
Alpha, also known as the level of significance, indicates the threshold at which we reject the null hypothesis, typically set at 0.05 or 5%.
Two-tailed
A test of significance that checks for the possibility of either a positive or negative effect and doubles the significance level.
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