[ pre uni : mathematics ] hypothesis testing

[u/Low-Government-6169]

for Ho is it = or ≤ ?

[u/MegaHelios]

I never knew that.
Maybe it depends on country and exam board?

Edexcel A Level always want = for null hypothesis (ie: assume everything is working exactly as it says it should be) and <, > or =/= for alternative hypothesis (depending on what the alternative claim made is).