Determine whether Meijer or Kroger has lower prices on average for families.
I randomly speak with 100 customers who are purchasing groceries for their families from Kroger and obtain their total amounts spent. I then select another 100 customers at random who purchased groceries for their families from Meijer and record their amounts spent. Use the appropriate output below to determine if either store has better prices, on average, for people purchasing groceries for their families.
A. Identify the correct output from below.
B. Complete the exercise to determine if one store is better than the other in terms of mean family grocery price using a = .05. Clearly tell which is better if you decide this is appropriate.
C. Explain why the procedure is valid.