A family-run convenience store/gas station in a resort town experiences a lot of variation in sales, depending on whether it is during the summer vacation season or the regular year. Sales during the off-season do not vary that much, but the vacation season can be very unpredictable. The family is interested in predicting the total daily sales from the number of customers who buy gas and various other items in the store each day during the summer vacation season. A random sample of 20 days from the past two summer seasons is taken. Some of the summary statistics about the number of customers per day and daily sales (in $1000) are given below. mean number of customers 721.47 standard deviation of customers 1820
mean daily sales ($1000) = 38.778 standard deviation of daily sales ($1000) = 7.444
r^2= 0.743

Required:
What would be closest to the predicted daily sales if there we in a resort town experiences a lot of variation in sales, depending or the regular year?