What price do farmers get for their watermelon crops? in the third week of july, a random sample of 45 farming regions gave a sample mean of x = $6.88 per 100 pounds of watermelon. assume that σ is known to be $2.00 per 100 pounds.

Anew 2-lane road is needed in a part of town that is growing. at some point the road will need 4 lanes to handle the anticipated traffic. if the city's optimistic estimate of growth is used, the expansion will be needed in 4 years and has a probability of happening of 40%. for the most likely and pessimistic estimates, the expansion will be needed in 8 and 15 years respectively. the probability of the pessimistic estimate happening is 20%. the expansion will cost $ 4.2 million and the interest rate is 8%. what is the expected pw the expansion will cost?