A Research Article Reports That the Mean Number of Group

question 38

Multiple Choice

A research article reports that the mean number of group treatment sessions attended by a sample of people was 20,with a median of 12 and a mode of 10.Which of the following statements is/are true about the sample?

• A)It is normally distributed.
• B) Some people attended much more than 20 sessions.
• C) Most people attended about 15 to 20 sessions.
• D) More than half the sample attended exactly 10 sessions.

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Definitions:

Test Statistic

A calculated value from sample data used to test a hypothesis against a null hypothesis.

Independent Samples

Two or more groups of samples that are collected from separate populations and are not related or paired in any way.

Significance Level

The threshold below which a p-value results in the rejection of a null hypothesis, indicating statistical significance; commonly set at 0.05 or 5%.

Population Locations

Refers to the geographical distribution or positioning of individuals within a specified area.