For a One-Tailed (Upper Tail) Hypothesis Test with a Sample

question 24

Multiple Choice

For a one-tailed (upper tail) hypothesis test with a sample size of 18 and a .05 level of significance, the critical value of the test statistic t is​

• A) ​1.645.
• B) ​1.734.
• C) ​1.740.
• D) ​2.110.

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Definitions:

Descriptive Method

A research method aimed at describing characteristics of a population or phenomenon, often through observation, surveys, or case studies.

Naturalistic Observation

An investigative approach where individuals are watched in their natural settings without any interference from the person observing.

Experiment

A method of investigation in the sciences or social sciences in which variables are manipulated to observe the effect on some behavior or condition.

Testable Prediction

A testable prediction is a specific statement about the expected outcome of a scientific experiment, based on a hypothesis or theory, that can be observed and measured.