So I have been reading notes and been doing exercises on the hypothesis testing and now I understand how to implement
the systematic steps of the testing.
I still don't understand when I have a directional case what my hypotheses should be.
I came across the following question
Verify a claim that the average amount of time spent by high school students on console games is 300 minutes. A sample of 30 indicates that the average amount of time spent is 317 min and the population standard deviation is 42.50 minutes. At the 0.05 level of significance, conduct a hypothesis test to determine if the true mean time spent is greater than 300 minutes.
Now, I'm really confused. I think the research question seems to imply we should have H0: u = 300. But what about the last setence where u >30 ? where should that come in?
Help will be appreciated. Thank you.