Statistics and Probability 4th Quarter Review of Concepts

If the rejection region lies entirely on the left tail of the bell shaped curve, then the test is a two - tailed test.

• True

• False

Type 1 error is also called False Negative. It is when a false null hypothesis is accepted.

• True

• False

In a test of hypothesis, a test statistic is computed using z - test or t - test.

• True

• False

If we rejected the null hypothesis, this means that the test statistic values falls on the unshaded region of the bell shaped curve.

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• False

A Type I error is committed when we reject the null hypothesis when it is actually true.

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• False

The level of significance also indicates the accuracy level and the margin of error when testing the hypothesis.

• True

• False

If the computed value false inside the rejection region, then the null hypothesis is rejected.

• True

• False

If the symbol less than (>) appears in the alternative hypothesis, then the test is left tailed.

• True

• False

The fifth step when testing the hypothesis using the 7-step method is to draw the bell shaped curve and label its acceptance and rejection regions.

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• False

In a two-tailed test, the rejection region is split and placed in both tails of the bell shaped curve.

• True

• False