Recall that in the previous activities, we assumed we knew the true population parameter, p, and looked at how close sample proportions were to this value. Often, we will not know the true population parameter, so we will need to estimate it. The sample proportion is used as a point estimate of the population proportion. A point estimate is a single value based on representative sample data that is a plausible estimate of the population parameter. In this case, we are talking about proportions, so the best estimate for the population proportion is the sample proportion. We refer to the point estimate for proportions as p Refer to Question 1 to answer the following questions. Part A: What do we want to estimate? O The sample proportion, p O The population proportion, P Part B: What are we going to use to estimate the proportion of college students who have a high level of stress? O The population proportion, P O The sample proportion, p Question Help: Message instructor Calculator