Writing Homework Help

Writing Homework Help. Which statement below best represents a null hypothesis for an experiment?

Which statement below best represents a null hypothesis for an experiment?

		There is no difference in the biological activity of Drug A and Drug B.
		Drug A is more biologically active than drug B.
		Drug B is more biologically active than Drug A.
		Failure to include a control group in an experiment might lead to Drug A being more active biologically than Drug B.