1. Use the mean and the standard deviation obtained from the last module and test the claim that the mean age of all books in the library is greater than 2005. 2. Share your results with the class. 3. Then, read several of your classmates' postings. 4. Respond to a total of three (3) or more classmates' posting explaining if you agree or disagree with his/her test results. 5. Please make sure to comply with all Netiquette Guidelines listed in the START HERE! module (Introduction to MDC Online Courses) section. 6. To see the grading rubric, click on the 3-dot menu side of screen. on the top-right