3. A pastry shop is considering how much hot chocolate to prepare each morning. Hot chocolate costs $0.10 per oz to make and sells for $0.90 per oz. Customers can buy hot chocolate in any number of ounces that they wish. Any hot chocolate not sold by the end of the day is discarded. The daily demand for hot chocolate is normally distributed with a mean of 1,000 oz and a standard deviation of 50 oz. How much hot chocolate should the pastry shop make each morning? You may use a z-table for this question.