• Please explain the working not just answers. thank you
• A cannery claims that its sardine cans have weight of 8oz., with a standard deviation of 0.15oz. You take a simple random sample of 30 cans and encounter a sample mean of 8.15 oz. Are you inclined to believe the claim?

a.(Yes or No)

b. Why/why not?

A simple random sample of 10 employees of a large company is presented below (salary is in $1,000s). Using the Empirical Rule, between what two values can we be 95% confident the population mean lies? ______ and _______

Employee 1 2 3 4 5 6 7 8 9 10

Salary 38.8 46.7 61.1 49.6 58.5 80.8 36.7 46.5 47.6 56.7