the local supermarket buys lettuce each day to ensure really fresh produce. each morning, any lettuce that is left from the previous day is sold to a dealer that resells it to farmers who use it to feed their animals. this week, the supermarket can buy fresh lettuce for $4.00 a box. the lettuce is sold for $11.00 a box and the dealer that sells old lettuce is willing to pay $1.20 a box. past history says that tomorrow's demand for lettuce averages 225 boxes with a standard deviation of 32 boxes. how many boxes of lettuce should the supermarket purchase tomorrow? (use excel's normsinv() function to find the correct critical value for the given α-level. do not round intermediate calculations. round your answer to the nearest whole number.)
