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For a one-tailed t test, there is only one critical cutoff value. True False

For a one-tailed t test, there is only one critical cutoff value.

True

False

Math   Statistics-And-Probability   
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Answer #1

True.

For one tailed t test there is only one critical cutoff value.

As t distribution is symmetric. So if the test is right tailed then for level of significance the critical value is . if observed t value is greater than this the the null hypothesis will be rejected.

Similarly for left tailed test the critical value is . If observed t is less than this then null hypothesis will be rejected.

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