How to use the Pearson's statistical test in your investigation.
For more detail - https://www.rgs.org/CMSPages/GetFile.aspx?nodeguid=ae5ce08d-8852-46d4-b248-ce08900a2e2e&lang=en-GB&msclkid=63247e4fb0f911ec81be473c3e6a80cf
Please let me know in the comments if you would like the calculator.
