5. A group of researchers surveyed 58 people when they first started using Facebook (the researchers called this “Time 1”) and again 3 months later (referred to as “Time 2” by the researchers). At both time points, the participants completed a measure of social integration (a sense of belonging to a group of friends). 
Assuming the measure of social integration was on an interval scale, what statistical test would the researchers use in testing their research hypothesis? Explain your answer.

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Q: What is SSw?

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Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.