"Joiners

question 27

Multiple Choice

"Joiners:"

• A) maintain discussions with their friends via Twitter and Facebook updates and comments.
• B) are reactors to content.
• C) tend to be efficient and organized users of social content.
• D) maintain a profile on one or more social networking sites and who visit those sites on a regular basis.
• E) consume the content of others, while they keep their own identities at a distance.

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Definitions:

Power of a Test

The probability that a statistical test will correctly reject a false null hypothesis; a measure of a test's ability to detect an effect when there is one.

Null Hypothesis

A statement used in statistics that proposes there is no significant difference or effect, and any observed difference is due to sampling or experimental error.

Probability

A gauge for predicting the chance that an event will happen, expressed in numbers that fall within 0 and 1.

Power Consumption

The amount of energy consumed by a device or system in a given period.