1- A particular type of diet cola advertises that each can contains 12 ounces of the beverage. Each hour, a supervisor selects 10 cans at random, measures their contents, and computes a 95% confidence interval for the true mean volume. For one particular hour, the 95% confidence interval is 11.97 ounces to 12.05 ounces. a. Does the confidence interval provide convincing evidence that the true mean volume is different than 12 ounces? Explain your answer. b. Does the confidence interval provide convincing evidence that the true mean volume is 12 ounces? Explain your answer. 2- A 2016 Pew research study studied a random sample of 1520 American adults and found that the average number of books read in the year 2015 by the sample was x-bar = 12 books. Assume that the standard deviation of the number of books read in that year by all Americans is = 18 books. Construct and interpret a 95% confidence interval for the mean number of books read by all Americans in the year 2015. (follow the Inference Toolbox!)