(20 points) The average expenditure per student for a recent school year was $10,337 with a population standard deviation of $1.650. A survey of 40 randomly selected students resulted in a sample mean of 10,798. At a Os level of significance do these results indicate that the average expenditure has increased? M= 10,- 2-10 O = 1.650 10357-10 Pro -41.38 1650/840