The following data set gives dormitory room charges (in dollars) for one school year for a random sample of four-year universities. Use this data set to answer problems 6-8. 5816 6045 5612 6341 6106 7361 6320 6265 7220 7439 5395 6908 5561 5710 5538 6632 6. Give the mean and standard deviation of the data set (Use a calculator). (4 pts) 7. Give the 5-number summary of the data set and neatly construct a box-and-whisker plot. (12 pts) 8. 25% of the data is less than what amount? (2 pts)