An F statistic calculated on 3 and 48 degrees of freedom equals 4.23. Which decision would you make about a hypothesis tested at the p 0.05 level?
	Fail to reject the null hypothesis and conclude there are differences among the groups. Fail to reject the null hypothesis and conclude no significant differences are indicated among the groups. Reject the null hypothesis and conclude no significant differences are indicated among the groups. Reject the null hypothesis and conclude there are differences among the groups.