# Correlation Coefficient and Determination- Schering-Plough Corporation

Listed below are the net sales for Schering-Plough Corporation (a pharmaceutical company) and its subsidiaries for the six years from 1997 to 2002.

The net sales are in millions of dollars.

Year Net Sales

1997 $ 6,714

1998 7,991

1999 9,075

2000 9,775

2001 9,762

2002 10,180

a. Determine the correlation coefficient and the coefficient of determination. Interpret the results.

b. Determine the least squares equation. According to this information, what are the estimated sales for 2005 and 2010?

https://brainmass.com/statistics/correlation/correlation-238133

#### Solution Preview

Listed below are the net sales for Schering-Plough Corporation (a pharmaceutical company)

and its subsidiaries for the six years from 1997 to 2002.

The net sales are in millions of dollars.

Year Net Sales

1997 $ 6,714

1998 7,991

1999 9,075

2000 9,775

2001 9,762

2002 10,180

a. Determine the correlation coefficient and the coefficient of determinatio. Interpret the results.

b. Determine the least squares equation. According to this information, what are the estimated sales for 2005 and 2010?

Solution:

a. Determine the correlation coefficient and the coefficient of ...

#### Solution Summary

The solution examines Schering-Plough Corporation. The expert calculates the correlation coefficient and the coefficient of determination. The solution determines the least squares equation.