Consider a population with population proportion p, and a sample from the population with sample proportion pˆ. Which of the following describes the purpose of the one-sample z-test? A) To estimate the value of pˆ B) To estimate the value of p C) To estimate a margin of error for pˆ D) To estimate the probability of observing a value as extreme as pˆ given p E) To estimate the probability of observing a value as extreme as p given pˆ