9.11 Ground Beef The meat department of a local supermarket chain packages ground beef in trays of two sizes. The smaller tray is intended to hold 1 kilo- gram (kg) of meat. A random sample of 35 packages in the smaller meat tray produced weight measurements with an average of 1.01 kg and a standard deviation of 20 grams.

a. If you were the quality control manager and wanted to make sure that the average amount of ground beef was indeed 1 kg, what hypotheses would you test?

b. Find the p-value for the test and use it to perform the test in part

a. c. How would you, as the quality control manager, report the results of your study to a consumer interest group?