Collect some real data for something you can personally count or measure consistently. Make sure you follow the current safety laws and recommendations of our governments (Canada, Ontario, and your local municipality).

Calculate the same mean and sample standard deviation in a Jupyter notebook.

Use these to conduct a left-tailed hypothesis test at a 0.10 level of significance, where your null hypothesis is that the population mean is at least +2. The brackets shown are the CEILING function (look it up if needed).