Chapter 18 Recovery (T-test, T-interval, Paired T-test, Paired T-interval) 1. In 1998, as an advertising campaign, the Nabisco Company announced that every 18-ounce bag of Chips Ahoy cookies contained at least 1000 chocolate chips. You (as a student in 1998) were not sure this claim was true so you bought several randomly selected bags of cookies and counted the chocolate chips. You found in your sample of 16 bags of cookies, a mean of 1238 chips, with a standard deviation of 94.2 chips. a) Is there convincing evidence to support Nabisco's claim of at least 1000 chips in each bag of cookies? Complete a t- test. b) Create a 95% confidence interval for the average number of chips in bags of Chips Ahoy cookies. Interpret your interval in context. (Part 1) c) Does your answer to part (a) create the same conclusion as the answer to part (b)? Discuss what you notice between the two answers and how they relate