8 plus 79 - Google Search Quiz: Quiz . A Ti-84 calculator is required . Students will have 60 minutes . The quiz is open book and open notes . Students must work alone . Students will have one attempt . The quiz includes one question from a previous chapter D Question 5 1 pts A random sample of the number of Facebook posts per day by college students. Assume the population of such posts follows a normal distribution. 9 12 15 7 8 10 9 8 5 15 12 11 e). Construct the 95% confidence interval for the mean number of Facebook posts. 8.1 posts