What are meant by one tailed test and two tailed test in testing of hy

1.	What are meant by one tailed test and two tailed test in testing of hypothesis?
Answer» if the critical region is considered at one tail of the null distribution of the test statistic, the test is one tailed. if the critical region is considered at both the tails of the null distribution of the test statistic, the test is two tailed.

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