Question 2.1. Assign smallest to the smallest number of students they should sample to ensure that a 95% confidence interval for the parameter has a width of no more than 6% from left end to right end. (6 points)

Hint: How can our data be represented to show if a student in the sample is a Facebook user? Given this, what assumptions can we make for the SD of the population? Section 14.6 might be helpful!

Note: While the true smallest sample size would have to be an integer, please leave your answer in decimal format for the sake of our tests.