California has the second lowest rate of smokers in the nation.Only 15% of all Californians smoke.Anna thinks that the students in her school have an even lower rate.She collects a sample of 100 students, ten of them smoke.Calculate the z-statistic, state the critical value, and come to a conclusion concerning the rate of students who smoke at Anna's school.Let = .05.Make it a two-tailed test.[By the way, and this is NOT part of the question, which state do you think has the lowest rate?]You need to explain your work (how you calculated z).