Refer to the Wall Street Journal (Sep. 25, 2005) Business School Survey, Exercise 11.25 and the data

Question:

Refer to the Wall Street Journal (Sep. 25, 2005) Business School Survey, Exercise 11.25 and the data saved in the file. Find and interpret r and r2 for the simple linear regression relating y = percentage of graduates with job offers and x = tuition cost and then fit the simple linear model.
Exercise 11.25
Each year, the Wall Street Journal and Harris Interactive track the opinions and experiences of college recruiters for large corporations and summarize the results in the Business School Survey. One of these surveys included rankings of 76 business schools. Survey data for the top 10 business schools are given in the table above. All the data are saved in the file.