The meat department of a local supermarket chain packages ground beef using meat trays of two sizes: one designed to hold approximately 16 ounces of meat, and the other that holds36 ounces. A random sample of 36 packages in the smaller meat trays (16 ounces) produced weight measurement with an average of 16 ounces and a standard deviation of 0.5 ounces. a) What is the standard error of the smaller meat packages sold?

b) Construct a 99% confidence interval for the average weight of the smaller meat trays

c) What does the phrase "99% confident interval" mean?

d) Suppose that the quality control department of this supermarket chain intends that the amount of ground beef in the smaller trays should be 16 ounces on average. Should the 99% confidence interval in part be a concern of the quality control department? Explain