Chi-squared test worked example

Does taking vitamin C tablets affect the chance of people getting a cold?

A student investigated whether taking vitamin C tablets every day for a school term affected people's chances of getting a cold during that period. 

Download our worked example below to see the results.

Downloadable resources

About this resource

This resource was first published in ‘Number Crunching’ in June 2013.

Statistics and maths, Health, infection and disease
Number Crunching
Education levels:
16–19, Continuing professional development, Undergraduate