Question

v 3) A researcher wants to determine if there is a relationship between average temperature increase...

v

3)

A researcher wants to determine if there is a relationship between average temperature increase in the US and average temperature increase in Europe over the last 10 years. He receives two data samples on 10-year average temperature increase- one from his colleagues in Europe (measured in °C) and one from his team the US (measured in °F). What statistical test should he perform?

a)

Linear regression

b)

Correlation or Independent-samples t-test

c)

Independent-samples t-test

d)

Correlation

e)

Repeated-measures t-test

.
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Answer #1

(d) Correlation

The appropriate statistical test that could be performed is 'correlation'. This is because a realtionship (if exists) is to be determined between the two variables that are in question. Correlation would be appropriate as the direction of relationship as well as the strength of the relationship could be determined. That is, if there is a direct or indirect relationship and if there is what is the strength of the relationship.

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