Refer to the data in the previous question. Use the 2SD rule to find the 95% confidence interval. Why is it similar to the one you obtained in part (a) of the previous question?

Data from previous question

Students at Hope College were tested to see if they could determine the difference between tap water and bottled water. Of the 63 students tested, 42 correctly identified which was which. We will assume the students tested are representative of all students at Hope College.