Which of the following best describes the null hypothesis associated with using a 2-sample t-test to compare an outcome between 2 groups?

Question 1 options:

	The population median in group 1 = the population median in group 2
	The sample mean in group 1 = the sample mean in group 2
	There is no difference between group 1 and group 2
	The population mean in group 1 = the population mean in group 2
	Group 1 = group 2