Xr12-42 Companies that sell groceries over the Internet are called e-grocers. Customers enter their orders, pay by credit card, and receive delivery by truck. A potential e-grocer analyzed the market and determined that the average order would have to exceed $85 if the e-grocer were to be profitable. To determine whether an e-grocery would be profitable in one large city, she offered the service and recorded the size of the order for a random sample of customers.

a. Can we infer from these data that an e-grocery will be profitable in this city?

b. Prepare a presentation to the investors who wish to put money into this company. (See Section 3.3 for guidelines in making presentations.)