The following data represent the responses (Y for yes and N for no) from a sample of 40 college students to the question “Do you currently own shares in any stocks?” N N Y N N Y N Y N Y N N Y N Y Y N N N Y N Y N N N N Y N N Y Y N N N Y N N Y N N a. Determine the sample proportion, p, of college students who own shares of stock. b. If the population proportion is 0.30, determine the standard error of the proportion.