12-2. A soft drink company wants to test-market a new product in n = 40 randomly selected convenience stores. The product will be introduced if in excess of 10 cases are sold per week in each store. Experience with similar newproducts reveals that sales are approximately normally distributed and that the standard deviation should be approximately 3.5 cases per week.

Should the new product be marketed? Let α = 0.05. What is the p-value for this test?