For a One-Tailed Hypothesis Test, the Critical Z-Value of the Test

question 81

Multiple Choice

For a one-tailed hypothesis test, the critical z-value of the test statistic is -2.33. Which of the following is true about the hypothesis test?

• A) \(\alpha\) = 0.05 for a lower-tailed test
• B) \(\alpha\) = 0.01 for a lower-tailed test
• C) \(\alpha\) = 0.05 for an upper-tailed test
• D) \(\alpha\) = 0.01 for an upper-tailed test

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Definitions:

Census

A survey to collect data on the entire population.

Population

The full set of subjects or entities analyzed in a statistical investigation.

Experimental Studies

Research designs that involve the manipulation of one or more variables to determine their effect on one or more outcome variables.

Observational

Relating to the collection of data by observing and measuring phenomena as they occur naturally, without manipulation or intervention.