Question 5 1 pts A researcher wants to find the effects of a particular diet on blood pressure. She randomly assigns 34 subjects to a control group and a treatment group. The treatment group is given a special diet the control is not. After 6 months the blood pressure of each group is measured. What test of significance would be appropriate? O 2 sample t-test unpooled O 1 proportion Z test Matched Pairs t-test O 2 proportion Z-test