Regression analysis

How does your age affect the kind of car you buy?

At a basic level, regression analysis involves manipulating some independent variable (i.e. background music) to see how it influences a dependent variable (i.e. time spent in store). It describes how the value of a dependent variable changes when the independent variable is varied. It works best with continuous quantitative data like weight, speed or age.

Regression analysis is being used to determine how:

• levels of customer satisfaction affect customer loyalty

• the number of supports calls received may be influenced by the weather forecast given the previous day

• neighbourhood and size affect the listing price of houses

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