Suppose that 73.2% of all adults with type 2 diabetes also suffer from hypertension. after developing a new drug to treat type 2 diabetes, a team of researchers at a pharmaceutical company wanted to know if their drug had any impact on the incidence of hypertension for diabetics who took their drug. the researchers selected a random sample of 1000 participants who had been taking their drug as part of a recent large-scale clinical trial and found that 718 suffered from hypertension. the researchers want to use a one‑sample ‑test for a population proportion to see if the proportion of type 2 diabetics who have hypertension while taking their new drug, , is different from the proportion of all type 2 diabetics who have hypertension. they decide to use a significance level of a 0.05

determine if the requirements for a one-sample z-test for a proportion been met. if the requirements have not been met, leave the rest of the questions blank. the requirements have been met because the sample was appropriately selected, the variable of interest is categorical with two possible outcomes, and the sampling distribution is approximately normal.

(a) the requirements have not been met because the population standard deviation is unknown.
(b) the requirements have been met because the sample was appropriately selected, the variable of interest is catagorical with two possible outcomes, and the sampling distribution is approximately normal.
(c) the requirements have not been met because there are two samples: the type 2 diabetics with hypertension who categorical with two possible outcomes, and the sample size is at least 30 are not taking the drug and the ones who are taking the drug