Sal continues his discussion of the effect of a drug to one-tailed and two-tailed hypothesis tests.

April 2018

One- and Two-Tailed Tests. The test of such a hypothesis is nondirectional or two‐tailed because an extreme test statistic in either tail of the distribution

April 2018

Two-tailed Test A two-tailed test is a statistical procedure used to compare the null hypothesis that a population parameter is equal to a particular value against the alternative hypothesis

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