Data were collected on the annual mortality rate (deaths per 100,000) for males in 61 large towns in England and Wales. The data set also notes for each town whether it was south or north of Derby. The summary statistics are a) Test the null hypothesis at a = 0.05 using the two-sample t-test. Identify the null and alternative hypotheses. Choose the correct answer below. OA. HO: HN - HS = 0 OB. HO: HN - HS #0 HA : HN - HS >0 HA : HN - HS = 0 O C. HO: HN - HS = 0 OD. HO: HN - HS = 0 HA : HN - HS two towns