For Tests of a Mean, If Other Factors Are Held

question 79

Multiple Choice

For tests of a mean, if other factors are held constant, which statement is correct?

• A)The critical value of Student's t increases as n increases.
• B)A test statistic t_calc = 1.853 with n = 16 leads to rejection at α = .05 in a one-tailed test.
• C)It is harder to reject the null hypothesis in a two-tailed test rather than a one-tailed test.
• D)If we desire α = .10, then a p-value of .13 would lead us to reject the null hypothesis.

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Definitions:

Li

The elemental symbol for Lithium, a soft, silver-white metal belonging to the alkali metal group.

Grams

A unit of mass in the metric system, equal to one thousandth of a kilogram.

HI

The chemical formula for hydrogen iodide, a diatomic molecule.