
Chapter 14
PB
Simple Linear Regression Analysis
543
Example 14.4
Ranbaxy Laboratories Ltd., incorporated in 1961, is one of India’s largest pharmaceutical
companies. Table 14.6 exhibits the sales volume and advertisement expenditure (in million
rupees) of Ranbaxy Laboratories Ltd. from 1989–1990 to 2006–2007.
TABLE 14.6
Sales and advertisement expenditure of Ranbaxy Laboratories Ltd. from 1989–1990 to 2006–2007
Year Sales (in million rupees) Advertisement (in million rupees)
1989–1990 2064.5 30.4
1990–1991 2587.8 51
1991–1992 3396.9 59.1
1992–1993 4622.2 79.5
1993–1994 5944.7 50.8
1994–1995 7139.2 98.2
1995–1996 8940.1 112.7
1996–1997 10,427.3 141.6
1997–1998 ...