Question 3 4 points Save Answer In a study, researchers try to compare two diet programs, program A and program B. The risk difference for the proportions of over-weight patients among those who were put on the two programs was 15% (patients on program B was the reference group). The 95% confidence interval for the risk difference was 9% to 21%. What can we say about this two-sided test? Not enough information to determine O p 0.05