Okay, I have a dataset to work with for an assignment in a graduate class I am taking. I don't understand what this question is asking me, exactly, and it's driving me nuts:
"Conduct a one-sample t-test in which you determine whether the mean of the difference in every TP concentration upstream minus the corresponding downstream TP concentration is equal to 0 or significantly different than 0. State your null hypothesis and test conclusion."
How do I do this in R? We never did this in class. I'm not wanting you to do my homework either, I'm so new to R and I don't know how to start doing anything in it. It makes me anxious.