Use the following information to answer the next threequestions. Civil engineers collected data from one area of Calgaryon the amount of salt (in tons) used to keep highways drivableduring a snowstorm. The amount of salt for n=10 snowstorms were asfollows: 1111, 2215, 1573, 2813, 2815, 2126, 854, 3965, 1819, 776.Find a 95% confidence interval for the true population mean amountof salt required in a snowstorm.
1) What is the margin of error for this CI?
2) Lower bound ?
3) Upper bound?