4. A student at a large university wanted to estimate the population proportion of students who passed their Chemistry exam. They decide to randomly sample 25 student in the class. The corresponding confidence interval is (0.40, 0.68). A) Find the margin of error for the confidence interval. a.) 0.10 c.) 0.28 d.) 0.54 B) Find the confidence level they used to construct their interval. a.) C = 78% b.) C = 80% c.) C = 84% d.) C = 90%
