Find the Mean

question 81

Multiple Choice

Find the mean. Round to the nearest tenth unless otherwise stated.
-Number enrolled in a night class: 13, 16, 14, 13, 11

• A)13
• B)12
• C)13.4
• D)16.8

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Definitions:

P-value

The likelihood of seeing a test statistic that is as extreme or more so than what was observed, assuming the null hypothesis is correct.

Sample Standard Deviation

A measure of variation or dispersion within a sample set of values, similar to standard deviation but specifically applied to samples rather than whole populations.

Null Hypothesis

A statement used in hypothesis testing that assumes no effect or no difference in the performance or characteristics being tested.

Alternative Hypothesis

A statement in hypothesis testing that proposes a significant difference, effect, or relationship exists in the population, opposing the null hypothesis.