One Benefit of Conducting a Two-Tailed Test Is That

question 17

Multiple Choice

One benefit of conducting a two-tailed test is that

• A) it allows for a greater region of rejection than a one tailed test.
• B) it allows for differences in groups be in either direction.
• C) it is easier to obtain significant differences between groups.
• D) it is easier to reject the null hypothesis than for a one tailed test.

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Definitions:

Interval Estimate

An estimation that specifies a range within which a parameter lies, providing an interval believed to encompass the true value of that parameter.

Sample Mean

The average of all the values in a sample set of data.

Confidence Interval

A span of values, taken from sample statistics, seen as likely to encase the value of an unidentified population parameter.

Confidence Level

The probability, expressed as a percentage, that a parameter lies within a specified range of values (confidence interval).