The safety of people who work at or live close to nuclear-power plants has been the subject of widely publicized debate in recent years. One possible health hazard from radiation exposure is an excess of cancer deaths among those exposed. Assume that based on national vital-statistic reports, approximately 20% of deaths can be attributed to some form of cancer. You want to perform a hypothesis test that the proportion of cancer deaths caused by radiation exposure is higher than the proportion of deaths caused by cancer in general. Which of the following pair of hypotheses would you choose to for this test:

		H0: The proportion of cancer deaths caused by radiation exposure 0.20% HA: The proportion of cancer deaths caused by radiation exposure >0.20%
		H0: The proportion of cancer deaths caused by radiation exposure 0.20 HA: The proportion of cancer deaths caused by radiation exposure <0.20
		H0: The proportion of cancer deaths caused by radiation exposure =0.20% HA: The proportion of cancer deaths caused by radiation exposure 0.20%
		H0: The proportion of cancer deaths caused by radiation exposure 0.20 HA: The proportion of cancer deaths caused by radiation exposure > 0.20